I got married when I was 37 (1991) and I still think he's the coolest guy I know. I almost got married when I was 23 and again in my late 20s, and had I married either of them, I would be divorced now. I got very lucky. We laugh a lot. We don't have control battles. We love to do some things together, and other things separately. He's smart, funny, interesting, cool, calm and collected, and committed.
Take your time. No need to rush. Speak up about important things when you need to, but pick your battles--not everything is important enough to fuss about. See past the "does he give me cool presents on my birthday" to "does he act lovingly". Be careful around needy people---they're pretty exhausting in a marriage. Don't marry anyone who doesn't make you laugh reasonably often. Don't marry someone who is unkind. Get comfortable with apologizing and acknowledging your own weirdnesses.
"My predominant feeling is one of gratitude. I have loved and been loved;I have been given much and I have given something in return...Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and an adventure." O. Sacks