Colic when you also have a toddler?

Im due soon to have my second child & i solo parent 95% of the weekdays since my husband works nights. I'm terrified that my second will have colic or purple crying and don't know how I'd handle it while having my 2 year old to manage as well. I cosleep with my toddler & plan to continue while also room sharing with baby so were all together. The general advice I hear for dealing with that crying is ear plugs & walking away but I haven't heard what to do when you're also responsible for another small child. My toddler never had any uncontrollable crying so I don't have any experience with it in general

What do I do aside from pray I miss out on colic a second time?