I feel so overwhelmed

I have a 2 month old boy and my poor baby suffers from colic. Unfortunately I didnt produce enough milk so I had to supplement with formula since the beginning. He started on similac advance, which initially was ok but later caused him a lot of painful gas. The doctor recommended enfamil newborn which made him constipated so I switched to similac total comfort with no luck. Then the doctor recommended enfamil gentlease which has helped a little but he still gets gassy and colicky. I give him gripe water, gas drops. I do the bicycle exercise and gentle abdomen massage but still havent been able to helped him that much. I recently started the gerber colic soothe drops probiotics, waiting to see if it helps. Good thing he does not cry for hours but still I get very nervous and desperate. My hubby and I love to take him out places but Im always afraid that he will start crying. Another thing is that he loves to sleep on his belly and then I cant sleep watching over him. Please I would appreciate any advice or imput you guys can give me. First time mommy here. I dont want to feel this way. I know this is a process and this colics are temporary but it really kills me to see him like that and cannot do anything. Please help! Thanks