Hi Star,, welcome to the boards...

There are quite a few threads and loads of discussion about shaving, waxing or trimming - if you do a search you are bound to find them

The consensus seems to be;

shaving does create ingrown hairs...

waxing and depilatory creams can create ingrown hairs if you are not careful...

trimming (ie, giving yourself a number one over the lips etc) does not create ingrown hairs and yet still avoids long hairs tweaking and pulling...

I use a combination of depilatory cream and trimming.
Good luck