Sex on top (need advice)

Lisa • I`m 35 years old, I currently live in Lapine Oregon with my family. I have a wonderful husband and 2 amazing baby boys. I`m a sweet person, funny, kind and loving. I like to laugh.
I've never been on top and me and my boyfriend were trying it out and I couldn't get lined up to put his dick in. Any tips on making it easier to mount his dick? He's much taller than me as well. I'm 5'3 and he's 6'0