Feeling Down Despite My Efforts to Get Closer to Allah

Assalamu alaikum, I'm not sure if this is the right place to share this, but I really need some guidance. Before this Ramadan, I wasn't practicing Islam at all-I was born into a Muslim family but, unfortunately, I was caught up in many wrongdoings. This Ramadan, though, I decided to change and cut out all those bad habits, dedicating myself fully to serving Allah SWT. For the first time in my life, I've been praying all five daily prayers consistently and have made lots of positive changes for His sake. But now, I'm feeling really low. Since making this switch, I've stopped caring about worldly things, and I almost wish for death every day. I don't enjoy living anymore, and though I know praying for death is haram, I can't shake these feelings. I don't know what's wrong with me; I don't find joy in anything in this world anymore, and I've never felt this depressed before. Sometimes, I wake up in the morning feeling disappointed that I'm still here. I've tried to improve my mindset, telling myself life is beautiful, but all I do is cry, and when I'm not crying, I just feel numb to everything. I've made dua to Allah SWT, asking Him to remove this sadness and make me better, because I don't want to feel this way forever. I want to wake up grateful for another day to serve Him and to find happiness again. I really want to get better, but I just don't know how.