What makes you think you're not good enough? Do you have a skill that you're good at? Is there something that makes you proud of have you done something that makes you proud? Are you good at your hobbies? I'm sure you have many fantastic qualities that females would like.
Just be yourself, talk to girls like you talk to your male friends. Don't put them on a pedestal, they are just people.
Improve yourself, hit the gym, wear nice clothes, groom well, have a good hairstyle, have good posture, have good self esteem.
Love yourself and be happy, do things that make you happy, partake in your hobbies, relax, be proud of the person you are, you are important and part of the world and you matter.
Conversation skills are very important, look below on the points to help you with this.
You could try online dating, speed dating, joining clubs based on hobbies, through college/uni, through your network, through hobbies and approaching females.
Hope this helps
1) Relax, imagine you're just observing or there as a traveller. For example, if you are on holiday, you go there to experience and observe the attraction, you're not going to get anxious doing that are you?
2) Smile, smiling in contagious.
3) Be confident, respect yourself, accept yourself, work out, wear good clothes, feel good, focus on your passions, know you are a good person who treats people well, you have got as much right as everyone else.
Think positively, be proud of yourself, do things that make you happy, remember your happy times, what makes you confident? What makes you proud? Do you have a skill you are good at? Do things like cooking, driving, learning that increases your confidence daily. Relax.
Have good posture, body language, improve your appearance. Be happy with yourself.
4) Dress well, have good grooming, hairstyle, have good posture.
5) Just say hi or hey to people in your vicinity, who cares if they don't say anything back?
6) Ask how they are, how's everything, what's the latest, what made them choose this course, their plans for the future, their plans for the rest of the day, weekend, how was their weekend, what they will get up to, what they got up to, ask them about their hobbies, talk about what's happening.
Talk about the weather or did you see that sports game? Just mingle with them,
Compliment them, say "I like your jacket".
If you know they went on a holiday or somewhere, ask them about it etc.
7) Be passionate about life.
8) Lighten up, have a laugh, laugh easily, be friendly, approachable, interested, relaxed.