No problem.
Everyone has a different process. Mine is a little like this:
1) Do something fun. One thing I like to do is play video games, so I sit and play a game that's not too involved whilst I let my mind wonder. I might listen to a podcast on a walk, or this time of year sit by the fire with a whisky and a book or a good Netflix show. The point is to relax yourself. If you're all pent up and thinking "WHAT SHOULD I DO WHAT SHOULD I DO WHAT SHOULD I DO WHAT SHOULD I DO!" you won't really find an answer, or you'll clutch at one in desperation. Basically think of it like you're trying to read a map. If you're frantically trying to quickly find the right road (i.e. worried or panicked), with your face pressed right up against the map (i.e. lack of perspective, you need to take a step back) in the freezing wind and rain (i.e. distracted by the opinions of others and your worries about how others are judging you), then you can't read the map. You need to take a breathe, find some shelter and warmth and take your time to study the map properly, planning out several routes. So in a nutshell, step 1 for me is to just stop looking for a little while at first to let my thoughts settle. That helps things to become clearer. So fire up your computer or whatever it is you like doing and get to some relaxing.
2) Write down my ideas as they occur to me. So I'm playing my video games or reading my book or whatever, and bing, a thought pops into my mind about what I might like to do. Could be a good thought, an okay one or a terrible one. E.g. say I'm playing GTA and a cop show up. I might think hmm, I wonder if being a police officer is a good job. What about a firefighter, a soldier, or a paramedic? Just write it down on your pad and get back to relaxing, or do some googling if an idea excites you (if it does, and in a "That sounds awesome way", not a "finally at least this is something" way, then that's usually a good sign).
3) Do some research. So we've had our ideas come to us, now it's time to flesh them out. So say you wrote down astrophysics because you were listening to something about space and decided it might be cool. Research it. Prospects is a good website for that, since it gives you the normal entry requirements, what the job is like, the salary etc. (warning, DO NOT get seduced by a salary, no amount of money is worth being miserable for, and equally don't be put off by a low salary). This doesn't need to be reams and reams, just some basic profiles. So make a little table or spreadsheet for yourself and get down some details. Don't worry too much at this stage about which uni to go or where to live etc. Side note, if none of the ideas seem good, don't panic! Just repeat steps 1, 2 and 3 over the next few days or weeks until you get some ideas you at least find somewhat appealing (remember, you don't have to do this forever and you can change your mind later if you want to).
4) Shortlist. Now it's time you fleshed out your good ideas even more (and crossed off some more if you want to), so make a shortlist of the stuff that interests you. You can now do some more research on those ideas. So say you decide that being a carpenter sounds cool or a chemist or an engineer or a plumber or whatever, get some more details. How long is the degree or training. Are there any apprenticeships offered? What are the working conditions like? How long does it take to train. Where can you train? etc. If you still like one or more idea at this stage, good.
5) Start doing something. I like to pick my favourite idea now, and run with it. So for me, I've decided that I want to be a toxicologist. That requires a science degree, so I'm planning to start a chemistry degree part time in Sep 2023 and in the meantime I'm looking for lab-related jobs. I'm also looking at short courses to prepare me for the degree and am reading and watching videos about chemistry and toxicology. If you do this and decide you don't like it, don't worry! Try another short course, job or whatever. Just keep looking until you find the thing that you actually want to do. Since I left law, I've looked into all of the following: whisky maker, beer brewer, doctor, nurse, paramedic, cigar sommelier, spa worker, historian, philosopher, writer, journalist, physicist, carpenter, plumber, engineer, electrician, travel agent, barrister, police officer, military officer, farmer, university academic, researcher, charity worker, landlord, stockbroker, radio voice actor, economist, physician associate, airline pilot, trapper (yes, really), national trust worker, linguist, translator, political scientist, legal theorist, coffee aficionado, space writer (it goes on). So you see, I've looked at A LOT of career options.
So that's how I got started, if you want to try it out. Mainly I would say you need to forget how it looks or what other think, and that you have to actually do something before you decide if you like it. Don't jump into a degree without knowing what you want to do because you don't want to end up back in the same place (and also you only get so much funding from Student Finance so just need to bear that in mind).