toppping and fimming are kinda the same thing you can only do one or the other

topping= snip the top of the plant off at the base of the new growth

fim= abv for fuck i missed it is a method where you cut the top of the plant in the middle of the new growth in an attempt to produce multipul tops

you might also want to do some searching for "lst" = low stress training it is a method of tying down the branches of the plant to keep it from getting to tall

Good luck-Bomb