Good for you.
Be aware that you may get conflicting opinions on this forum. With your lack of experience it will be difficult, but you need to understand what people are saying (and are not saying) - and why. Probably the best way to do that is to talk about what you've read with someone you trust that has more experience of the world and of people.; electronic expeirience isw
not required for that!
Here's my PoV, based on doing electronics and software as a hobby and professionally since the 60s.
At this stage you need to concentrate on getting good qualifications in topics that are vaguely relevant to your interests. Until university that means STEM subjects, not very specific qualifications such as electronics A level.
You, and employers, will value your having breadth; depth comes later.
The qualifications you get must be tailored so that you have good theoretical depth, augmented by practical experience. Now theory is
necessary, but it is not
sufficient. Similarly practice is
necessary, but it is not
sufficient. You need both.
At your stage you should be experimenting, finding to what extent your creations do and don't work, and then finding out why. You will then be able to put down on your CV that yuou have done more than the course required simply because you enjoy the subject. That will put you ahead of 90% of job applicants. You can discuss what, with 20:20 hindsight, you would do better next time. That gives the interviewer something to talk about, and allows them to discover your strengths - which other candidates won't have.
So, pick something difficult that interests you, do it, make mistakes, and learn from them. Do it as a hobby for now, and don't worry about paid employment just yet. There's plenty of time for that and I strongly suspect you won't have problems getting a job (well, fewer problems than most people
)
If you really want to start entering the adult world in ways that will help you and your job prospects, consider getting a hobby that will develop your spo-called "soft skills" (ugh!). HR droids love talking about teamwork, drive, challenges, responsibility etc. For my daughter that was done by her learning to fly an aircraft. At 14 you are old enough to be a solo pilot, and I know three wonderful people that are. A gliding club requires all of those skills and will develop them in you. See
www.gliding.co.uk for the nearest club (probably Cambridge Gliding Club). It is cheap, fun, and maybe you could learn alongside your parents?
Bear in mind that you may (or may not) change your mind about a career over the next few years. I didn't; my daughter and most people did.