I am also a street dancer.
I started learning to dance when I was 17 years old. Currently a member of my school's street dance club.
Now I'm 19 and in college.
If you like street dance, it's never too late to start, no matter when.
If you decide to take lessons, then start now!
Flexibility (toughness) can be developed, first of all you have to try to relax the ligaments of your whole body, mainly legs and hips, because a lot of movements in street dance require lower body strength. The first time you pull away with the help of external brute force (for example, throw a word split, go down to your limit, then have someone else slam on your shoulder, it goes down and the ligaments tear. Recuperate for a couple weeks, and exercise the ligament area from time to time during the recuperation process, and you'll always be able to do the splits later on, which is how I trained in the first place).
Strength in general can also be developed, the best is to keep running every day about 2km, push-ups and sit-ups every day to keep about 100. Will develop up hand and waist and abdominal strength, do the big loop and windmill when you will feel the convenience of daily exercise to you ...... strength is mainly to exercise the hand, push-ups can be properly accrued, as well as inverted, if there is no morbid vertigo, adhere to the daily inverted, will strengthen the hand, not only the muscle line is clear, but also strength full.
Join the world of street dance!
Wishing you success!