From my experience with smoking weed it's had good and bad effects.
It won't bring you longterm happiness, though, anon. It can relieve stress and anxiety, and can make you feel happy for a few hours, but I don't think it'll cure your depression. Maybe I'm wrong, though. Just don't use it as a crutch, you can't get physically addicted to it but you can absolutely get psychologically addicted to it, especially if you're depressed and have a hole to fill.
Smoking it is obviously bad for your lungs, edibles are better if you can do that. It also is shit for your heart if you smoke, every time I smoke now I have to be careful because if I smoke too much my heart starts to hurt and it gets scary.
Memory loss is a real thing. My memory is definitely worse now than it was a few years ago when it started. That was something I never considered and it was the one thing that made me second-guess continuing to smoke.
My brain feels a little more "muddy" and umclear than it used to be. I may be a bit dumber in some regards.
However, the psychedelic aspects are really what have made it worth it for me. With that muddy feeling comes more abstract thought. My brain just thinks differently than it used to, and I can't explain how. I feel dumber in some conventional ways, like I probably am worse at learning and understanding new things, but internally my brain feels way more advanced than it used to. I wanna do actual full psychedelics soon but I have no clue where to get them. I'm really curious to see what would happen, though.
Be aware of paranoia. It's only severely hit me once, but it was a scary night. I was convinced my friend was trying to rape me. It varies between people, you might never have it or you might have it every time you smoke. You probably won't have any severe paranoia (probably just stuff like being convinced everyone knows you're high and all that), but be aware that some people do.
Thank you for reading my blog :)