Struggling with my faith and feeling distant from Allah. Need advice.

Assalamu alaikum everyone. Lately, I've been really down on myself, feeling like I'm not living up to being a good Muslim. I'm in my early 20s and working, but I'm constantly overwhelmed by guilt over my actions. My prayers are always getting pushed back-I've even stopped praying Fajr altogether because there always seems to be something 'important' happening at prayer times. I can't sleep peacefully anymore, and I miss those dreams I used to have about reciting Quran or seeing the Kaaba; they just don't come now. My health isn't great either, and I know I'm slipping into more sins. I have a medical condition that leaves me dizzy and drained, and even though I managed it well before, it's getting harder. The guilt is honestly drowning me sometimes. I try to recite different ayat when I can, and I give charity within my means, but I just don't know how to be thankful enough to Allah with all this weighing on me. Any sincere advice would mean a lot.