My best advice for you is to focus on one thing at a time. While there are many things that you want to do and get done, getting overwhelmed by all these things will only stress you out and make u feel hopeless that at the end of the day you wont have had anything done. My second advice is to not compare yourself to other people. Each life is different and each person has faced different opportunities and have their own journeys.
Plus, during these complicated times, its easier to be influenced by the media and seeing all these people doing things online and getting famous etc. But its important to remind yourself that that isn't reality. While they may be doing what they are doing, it doesn't reflect the majority of the population and it doesnt then mean that you as a person are failing because you aren't doing what they are doing.
Heres my tip for you first to do (example)... 1. if you able to, go to a washing machine and ask somebody to help you how to work it. Thats one thing done, then move on to the second... learn some cool hairstyles on youtube maybe. 2. create a plan and write down what things you could do on your Youtube channel. Think about what you love doing and how you could capture that and then record it. but don't let this consume you as year 12 is a lot of work on its own. Don't overwhelm yourself with too many things because you are still young and have your whole life ahead of you to do things.