Don't try to stress train her now, at this point it would be considered high stress

When they're much younger in the first week to two weeks of veg is when you want to pinch and bend her branches. Try searching "pinch and bend" or "LST" to learn about it.

Do it when they're young so you can teach it to grow horizontal and bushy, that's low stress, asking it to change right now from vertical to horizontal will stress the piss out of it

Hope this helps