I've got clinical depression, I've known for about 7-8 months now, and I'm medicated for it.

It was good for the first few months, but then it kinda just stopped improving, so now I'm in the constant state of being happy for 90% of the day and all of a sudden just having a massive wave of emptiness, and most of the time I'll have the urge to self harm or kill myself, I haven't done it for a while but each time it gets more and more tempting

How tf do I help this