Practice makes it better, there are lots of variables wind, height, gliding characteristics but what is taught in the ppl is a basic formula for you to develop later.Don't try to over complicate it.
We used to do a technique which will probably get shot down because its too formulaic. It was:
Engine failure
1)Trim for gliding speed
2 )Turn into wind
3) look on the left (thats your field).
4) fly your left hand circuit around the field.
Most ppls cant fly a pfl for toffee and waste most of the first 1000' of gliding looking for a field to land in. Doing the above sorts all that out (the instructor won't start you on a pfl where you can't make a decent circuit unless he's really mean or thinks you can handle it)
5) Get used to constant aspect which means the field should always in the same place down the wing(when they are level in a low wing a/c) . If the field is beyond the wingtip you wont make it, it needs to be within half to 3/4 of a wingspan for the average ac to reach it.The raf used to say it had to be within the roundels on a chipmunk)
obviously theres the relight, mayday and shut down checks to fit in. It also assumes you are at sufficient height to get around the field but for training the engine failure usually happens at 2500-3000' so unless theres a howling wind blowing thats enough.
You actually have a lot of time, just follow the training.
Once you get used to a standard pfl you can do variations. (eg pfl at 500', turn into wind and accept whatevers ahead of you)
Don't know if that helps but Good luck