Once you have identified your pelvic floor muscles you can perform Kegel exercises. Before you do them, empty your bladder and sit or lie down. Contract your pelvic floor muscles, hold the contraction for five seconds, and then relax for five seconds. Try it four or five times in a row. Work up to keeping the muscles contracted for 10 seconds at a time, relaxing for 10 seconds between contractions. Aim for at least 3 to 5 sets of 10 to 15 repetitions a day. You will notice a benefit to your pelvic floor strength in 8 to 12 weeks when done faithfully.
There are absolutely no downsides to doing Kegel exercises. Once you learn how to do them correctly Kegels should be a permanent part of your daily routine. You are never too young to start learning your Kegel exercises and flexing your pelvic floor muscles. Kegel exercises are well worth the effort at any age. Practice makes perfect!