You judge yourself too harshly my friend, horrible is not the term I would use, it is a nice piece, there are few methods to reduce noise in cycles including light portals, multiple importance, light paths for glass, GPU rendering and I find using planes for lamps gives less noise in cycles than using the actual default lamps. Have you considered these settings? Did you alter the sampling presets? if you leave it at default you get a lot of noise.

It looks like it could of rendered for another 7 or so minutes is all. Raise the sample count in the render panel. Whats important is I dont see many fireflies forming so this will clear if you let it render longer.

Thank you guys, you've helped me a lot. I raised number of samples and its just amazing now! :) Also tried light paths, what did not changed it much and tried to set up GPU rendering, but there is no another option so..

Dude, it looks great, nice work.

heyyy can u tell me or give me the link to the hdri its amazing and i will give credits to you!! ily

Amazing! Tysm!