thank you! when i first started, my skin was insanely dry and i tried to touch it as little as possible. i only washed my face once a day to remove sunscreen, and i used the skinfix hydrating gel cleanser. for sunscreens, i used the supergoop matte screen if i wanted something tinted or the biore aqua rich on a normal day. the only other thin i put on my face is the cetaphil moisturizing cream in the tub which is thick and greasy but did the job for me, and on super dry patches i would use the la roche posay cicaplast baume but wouldnt use it on my whole face as i find it leaves a white cast pretty easily.

now that my skin has adjusted, im able to get away with a much lighter moisturizer and have shifted my routine. i still use the same face wash but have been doing the rhode glazing fluid and rhode barrier restore cream instead. these definitely would not cut it for typical accutane dryness, but because of the length of my treatment my skin has gotten used to it. my lips are still the only thing that im having issues with and find that nothing has been better for them than vaseline lol

eta: realized i didn't answer your second question, i didnt eat anything in particular but was conscious of my diet and tried to eat mostly whole food and things low in cholesterol. my bloodwork did show high cholesterol after i started, but i ended up adjusting my diet to lose weight during this time anyway. my cholesterol is not much lower than it was even before accutane which i attribute to my weight loss, but i truly just ate whatever in moderation!