There are NO exercises that will lengthen your leg. If you have finished growing then your leg is the length it is. Period.

There is a possibility that your leg is not actually shorter, but an apparent discrepancy due to pelvic obliquity etc, but this is unlikely in your case, from your history as given.

Many people have up to half an inch (or 1 cm+) shortening all their life with no symptoms. The spine curves slightly sideways and the body adapts, but if there is a larger difference this can lead to back pain and other problems.

Get somebody who knows what they are doing to measure your leg lengths, "real" and "apparent". If there is a small difference and you are bothered by it, try a 1/2 cm heel raise inside your shoe to see if that helps.

If that is not sufficient you may need to have an external heel and sole raise applied to your shoe. One generally raises the heel by about 1/2 cm more than the sole. You can't put a big heel raise in and still expect your shoes to support you, and anything over 1/2 - 3/4 cm raise you should have a slightly smaller fore-foot raise as well.

Incidentally, we had a 40 something lady in our clinic last week with a 19cm short leg!!! She said she'd tried a shoe raise, but it got in the way on stairs as she had a fixed knee and limited hip movement!

.... and anyway, she said, it was sometimes useful to be two different heights!!