I was where you are once. Go to yeshiva now, they'll take you free, do good, tell the Rabbis to find you a shidduch, you'll have a great life. You wait a couple years, it won't be an option like it is now. You can go make a great career and have a good home and kids, don't screw this up. Don't listen if they tell you wait, within a month at yeshiva you should start going in shidduch dates until you find the one, talk to another Rabbi if he tells you something like that and perish the thought.
Work out in the mornings and evenings while you're there and you'll learn far better, and Rav Kahane would recommend you do that in nature, I'm assuming judging from what he said about being in nature in the Jewish Idea. You'll also get the best shidduch possible, Torah and looks, if you are baal midot too you'll get your pick from the best girls.
Time is the most valuable thing you have, I could scream or cry it out to tell you to trust me, invest your time in Hashem, it pays off for everyone that does, and everyone who thinks they know best gets nothing or worse.