Dude you are 16, wait when you are my age, with this number of miles on the chassis, you will be sore. I popped my knee out getting out of the shower this morning.........
Listen, your muscles grow, when they are not being worked. They grow (& with it your strength) during re-couperation. The muscles are sore due to little tears in the muscle fibre. The "soreness" which you seek is actually called DOMS (Delayed Onset Muscle Soreness). As you get older it gets worse and can often take longer to set in.
To attain DOMS you must subject your muscles to more work than they can do or are used to doing. For example if you can it takes 50 push-ups to cause you exhaustion, then you need to do 55. Then you muscles will "learn" they can do more work.
In short don't b*tch and moan that you have trouble being sore...........