Single for the first time since 15. HELP.

I’m a 28F divorcing my husband who I’ve been with since high school. Without getting into that story, I just want to know the best pieces of advice for going into the dating world. I’ve never used any dating apps, only bumble to match with other girls to meet friends. Before my husband and I started dating, I had been with a few other guys, but never all the way, so I’ve literally only slept with my husband. Wtf do I do? Help. lol