What should I do??

Even though I’m in high school and in a relationship that I’ve been in since middle school, I don’t know if I should keep the relationship going... my parents and many different adults are saying it’s not gonna last 😞😔 we’ve been together for 2 years and 4 days now, started in the 7th grade. We’ve been strong since then. The only person I feel connected to is him. We thought about sex and everything but sometimes we can get a little carried away and end up doing oral sex. I love him to death and I just don’t know who to believe, he has been with me through thick and thin, has helped me with my depression and other issues, we fought, we protect each other, we care about each other a lot, he got me a promise ring and a few other things, I got him a couples ‘ his and hers’ bracelets and also a few other things, It’s just... my heart isn’t taking how much confusion it’s going through. My friends say keep him, adults say it’s not gonna last... I NEED HELP!!! Can someone just tell me what to do😭😭😣😣