Colic

I have a 7 week old boy with very bad colic and I’m losing my mind! I’m a SAHM with this baby and also a 2 year old girl. I’m looking for some advice on how to help! I have no family or friends around to help me get a break. My husband works a lot, but takes over in the night with the baby to allow me to get some sleep, but I also am so stressed out I can’t sleep. I have talked to my dr about this and he prescribed a sleeping aid for me, however I don’t want to take it every night, so the nights I don’t im barely sleeping. And when I say barely sleeping I’m talking 1-2 hours Max before I have to get up for the day. I feel like I’m literally going insane! I have tried everything with my baby to get him to calm down during the day, but unless he’s attached to me at all times, and even then, sometimes it doesn’t help, he will always be crying. I can’t put him down in anything to give myself a break. My 2 year old is also very needy and I feel like I can’t get to her needs quick enough let alone mine. I hardly find time to go to the bathroom, drink water or eat during the day. I end up wearing my baby pretty much all day and at night he has to be held while sleeping. We can never put him down!! I’m just desperately looking for advice on soothing a colicky baby. I’m at my wits end and just need him to stop crying so much, allow me to set him down, and I need to start getting some sleep before I snap! Any help would be appreciated! Thanks