I've been natural for about 8 years - I'm young so this may not count. When I was in the sixth or seventh grade, I wanted a perm so badly and my mom finally obliged. But she started making me wear braids because I had no clue what I was doing with my hair, and I basically transitioned out.
If I have any tips, they would be:
-Low manipulation. It helps to keep my hair as thick as possible. I already have pretty thick hair, but I like it to look as thick as possible
Using low-comb or no-comb methods of styling helps even more.
-Low usage of heat. Maybe it's just me, but I get hair that is less healthy, dryer, and more brittle. Also causes splits for most.
-If you use an oil, try using one with ceramides
I love it!
-Don't be nervous wearing your natural hair out. It can be pretty daunting the first time, but it feels so great to do so!
and...
-If your family/acquaintances don't like your hair and want you to continously straighten/relax, I wouldn't acquiesce. It's your hair and you should be able to do what you want with it!