Predict My Times for Senior Year (I’ll do anything it takes to get to the olympics)

Maybe if you're a girl and don't peak at 16

Train like Gerry Lindgren.

I was that for the mile in 8th grade and I was running 20 minute 5ks. I was also doing zero miles per week unless you count hours of basketball a day as mpw. I ended up running 4:09 my junior year in high school. My coach brought me along VERY slowly my freshman year. Maybe 25-30 mpw. And it was the team culture to run 8-9 min per mile pace on runs so it was fun. My junior year I eventually stepped up to over 70+ mpw (still at 9 min pace) and ran well. I was far from Olympic caliber. Though I could close races faster than future Olympians because I had more raw speed.

I’m doing around 7:15 pace for all my runs (trails, road, etc). If I keep my mileage in the 40s-70s, what do you think I could do in 5K, 3200, and 1600?

With how you're training you'll either end up hurt or burnt out by the time you get out of high school. You'll probably have a very good high school career and then do absolutely nothing at the collegiate level of note because you'll have exhausted your talent.