Handyman licensing headaches: worth chasing certs for small gigs?

Been doing handyman work for a couple years now, mostly odd jobs like hanging shelves, fixing leaky faucets, and minor drywall patches. I use my Milwaukee drill set for almost everything, it's held up great on these small residential fixes. But lately I'm wondering about getting licensed or certified, especially for stuff like electrical outlet swaps or basic tile work. Saw a thread on r/handyman where guys talked about how it opens doors to bigger jobs without needing a full contractor setup. Someone in Handyman Nation group mentioned state requirements vary a ton, and for handymen it's often just a basic business license plus maybe a lead-safe cert if you're dealing with old houses. Tommy Mello has a video on starting out where he stresses certifications for credibility. Figure it's time to sort this if I want to take on more consistent work, but not sure where to start. Any tips on which certs actually pay off for a solo operator?