Struggling Mentally During the Day with Stress & Anxiety and Insomnia At Night, Does it Get Better?

I am 38 years old and male, I recently started going the nofap route (early November, but relapsed about 2 weeks ago and jerked off twice since I didn't know all that I know now about dopamine and stuff) after I noticed that my health and mental health started going down the drain suddenly, I have now issues with insomnia at night (hard time falling asleep and wake up multiple times throughout the night, so I use herbal teas to try and fall asleep like Valerian root) and during the day I am so stressed and anxious about everything and I keep getting ups and downs throughout the days as if I was bipolar all of a sudden or something.

I used to fap all day, everyday for years (from late 2019 till late 2022, I used to fap before, but nothing like that), but most of the time I wouldn't ejaculate, I would just fap while holding it in all day long and everyday, I am guessing I messed my brain out eventually by pumping in it so many chemicals whitout any release and my nervous system just eventually burned out and crashed or something?

I also feel weird now all the time, like I was not myself anymore or if I was a little drunk constantly or something.

Anybody experience the same things? It's already been almost 1 month and 3 weeks since I started my nofap journey and I am still in a bad shape mentally speaking...