I could write a whole book on this, and maybe someday, I will.
The truth is you have to strike a balance between being proactive and beng nonchalant. It's like football. You have to create OPPORTUNITIES, but not actually go for goal 'cos that's man job.
First off, if your current beliefs about men and dating (which people DO subliminally pick up on) are not working for you then you MUST have the humility to accept that you've gone wrong somewhere; that your current programming is flawed.
Changing your thinking patterns elicits one profound response, and that's resistance. Very few people truly take responsibility for their lives, romantically or otherwise. It's so much easier to blame external factors, blame porn, blame where you live, blame MEN themselves. It's all excuse after excuse with most people. 'Cos change is hard and takes you right out of your comfort zone. It's tough! But if you do what you've always done, you'll get what you've always got. Which in this case is nothin'.
Doing/thinking any of that is totally toxic to your ability to attract dates. As I said before, people can pick up on your attitude and if it's a bad one, stemming from a deep down belief that 'I'm not good enough' or 'all men want prettier girls' or 'all they want is sex' or whatever, you WILL indirectly push prospects away without even realising it.
Most people think that meeting someone special is luck of the draw, hence the 'sit back and wait' philosophy. But it's not as simple as random selection. The people in your sphere are there because of YOU, who you are, what you do, what you BELIEVE about men and the world. Your current reality stems from your current constitution, much of which was established during childhood, so that would be my first port of call.
Seriously, you can't afford to skimp on this 'inner' stuff. Look at other departments of your life. What's working, what isn't? What have you been ignoring the signs of all along? Invest in all aspects of your reality - friends, hobbies, dreams. This is what people mean to say when they tell you to 'focus on other things'. It means, build a life that a potential boyfriend will WANT to be a part of. Have more to say than 'I like nights in, nights out and TOWIE'. That's why 'not looking' WORKS if you're genuinely not NOT looking in order to get a boyfriend. You can't trick your way around this, it has to be authentic. Everyone wants to be with someone who is fully engaged in their own life. Remember, a relationship should be a cherry and not the whole cake.
Next, what do you look like? Don't be shy, now. Do you exercise regularly to maintain a strong, healthy body or have you kind of piled on a few pounds, which you squeeze under granny pants in the hope no one notices? What haircut do you have? What's your clothing style? You market yourself 24/7, whether you want to or not. Everything - from what you eat to how you keep your room/car to how you THINK - has an impact. I'm guessing that you've been neglecting some aspect of your 'outer marketing'. You could have the most beautiful personality in the world, but ain't nobody gonna notice if you hide it under frumpy dresses and look at the ground when you're walking. Don't get obsessed with image, but DO pay attention to the details. Men like sparkle. When you make an effort - whatever that means for you, whether it's a quick swab of lip gloss or a top-to-toe job - you sparkle, and men notice that.
Now for practicalities... How often do you put yourself in situations where you might meet men? Because eligible men are EVERYWHERE. People who say things like 'you can't meet decent me in clubs' are just making an excuse like I mentioned before. Whether it's at the bar or in the grocery store, opportunities exist. They exist alright, and it's up to you to capitalise on them by making sure that the message you're sending out is 'I'm open to offers and you'd be an idiot to pass this up', instead of 'I'm scared of intimacy/you probably won't fancy me anyway/I'm waiting for a relationship to make it right for me'.
And the best way to send out this subliminal message is to have a genuinely fulfilling life, chocka-full of activities you enjoy, friends who you respect and, hopefully, a career that engages you. If you're not feelin' that, then that's up to YOU to change. It's your responsibility to build a life of goodness that a guy will be excited to be a part of.
As a female, you're naturally attractive. But I sense you're probably getting in your own way with your negative belief patterns. Or, a combination of that and not putting in enough effort to take proper care of yourself from the inside out. About 70% of your problems with not attracting men will stem from your beliefs, and only you can fix it. The remaining 30% will be how you market yourself.
But it demands a long, hard look at yourself to identify what it is about your life that needs to well and truly jog on. And it's not about self-judgement; it's about AWARENESS. It's about understanding that you're a product of your beliefs and that you can take control of them now, if you have the courage to sit in the driver's seat of your own development.
... so yeah. That's what I got.