Progress slowing?

I was 123 lbs 2 months ago at 5’ 9. At 18 (male) decided I need to hit my prime physique soon or it might pass me by. Bulked to 145 in 2 months and now 5’ 10. I basically made a complete diet change overnight and started eating 2700-2900 cals a day. I was skinny fat before and I still am a little now but with more muscle definetly.

Progress has slowed!!! I feel like I am plateauing and strength isn’t really going up, despite my efforts to progressively overload. I checked with doc and I am fine despite having slight hyperthyroidism. Is it diet? Should I push to 3100 cals a day?

Macros per day:

160g protein

280g carbs

~80g fats