<human>: Can you summarize the given text in a few sentences?

In high-school I dated the same girl for 4 years - from the start of grade 9 to the start of grade 12. We broke up, and I immediately starting dating another girl for 1.5 years - from the start of grade 12 to the end of my first year of college. After this, I was single for about a year. I made out with a lot of people, but only slept with one (sort of - got whiskey dick). Now I'm dating an amazing girl who's everything I could look for. We're both 21, have been dating for about 8 months, and things are going great. We're moving fast and are planning to move in together at the end of this upcoming April. Objectively, she's a 10. Absolutely stunning. Personality wise, she's a 10. I genuinely couldn't be luckier.

I'm still young. I've recently became much more attractive. While I could see myself with this girl very long term, I feel like I'm missing out on hooksups, casual dating, and all of those fresh new feelings that come along with it. What do I do?
<bot>: In a wonderful relationship. Feel like I'm too young to get serious and am missing out on casual dating. What should I do?