I always feel weak tired and lack of motivation, I am a teenager, and I have a lack of engagement to make myself happy.what is wrong with me?

I'm going to take a guess. It might be that you are not sleeping enough. Do you go to bed late and get up early or something?

Also, I have read that it could be something to do with your hormones. Hormones in teenagers are all over the place and i'm told this can cause tiredness.

If you drink or smoke or do anything like that, this can also contribute to tiredness. If you do, my advice would be to try and detox for a while.

Just get a good nights sleep with no distractions and cut any stimulants out and you should notice a difference.

Please note: I am not a Doctor and this comment is my opinion only. If you feel your symptoms are causing you any issues, you should consult with a medical professional immediately.

You're a teenager

You're growing into an adult therefore you will feel like that.