What do Braxton Hicks feel like? And what do contractions feel like?

I’m 30 weeks with my first child and honestly I’m at the “is this it? What comes next?” Point of my pregnancy. Ive had round ligament on and off throughout my pregnancy but I didn’t know what to expect when I first got my round ligament pain because everyone described it differently and my round ligament pain didn’t fit what everyone else was saying it felt like. Again, I have no idea what to expect for these next few weeks and was just wondering what Braxton Hicks felt like? and what contractions felt like to different moms? What did they feel like with your first? Was it different than you expected it to be? So many questions lol 😂