I wanna be happy...... please tell me what to do

Happiness doesn't exist.
Some tips to feel good about yourself:
Go search for things to do which you genuinely like
Stop overthinking things
Stay away from pmo
Meditation
Cold Showers

 

Is it you speaking when it says you will always be addict?
No. It your brain trying to make you believe it, your brain is addicted since it is its job.
Did it bring you happiness? You feel miserable so why would it make you happy?
This is a hard addiction to kick but you can do it. Every one can, as long as they keep getting up after setbacks. God bless you.

 

It is just a human construction. When chemicals in our brain are being released healthly and on point, or dopamine from healthy activities without a burnout happening like in addictions, we are "happy", but that's just a word to mean that we are satisfied and without problems. Satisfaction is the right word and is not a solution nor it does persist forever once "found". It is not a state like a transcendent state like some people think. It is very fleeting, we are creatures of change and variety, there's no helping that.
If you find things that would make you happy and indulge in them, the way we are programmed, that "happiness" would fade in over some days because the more we received pleasure from the same sources, the less we keep receiving that pleasure. Therefore there will come a time that even "happy", you won't be satisfied and will notice that it is just an illusion of mind.

 

Thats the point of happiness. Its a mentally stable state of being. Our emotions are like a wave. Happiness is at the top. Bleak depression is below.

Creating a lifestyle that maximizes happinesses and minimizes depression is the goal of recovery.