My philosophy is to keep it simple. Don't add any exercise to your routine until you have the basic movements well drilled: back squat, deadlift, press, bench press, bent-over row, chin, dip. Then you can get into more ancillary lifts or more technical lifts.
Whatever form of programming you decide to use, you want to be lifting as efficiently as possible and you want your form to be consistent.
This is not a quick thing. It will take months to really find out what works best for you as there are many variables to play with, plus you have your very own anthropometry to learn about and flexibility to develop.
There are many variations on the basic power lifts that you can try once you have more experience. Eg. High-bar back squat, low-bar back squat, front squat, hack squat, Bulgarian split squat, sissy squat etc. Then there are ROM considerations. Your mobility and flexibility will dictate your form to some extent. If your mobility is limiting your ROM or your ability to assume correct positions, you will need to work on this also.
To get the best out of any routine, including HST, you have to have these things sorted to some extent. However, they will always be a work-in-progress so don't feel you have to have everything just right.
As has already been mentioned, you could do a lot worse than getting hold of a copy of Rippetoe's Starting Strength and swatting it up. Its a good place to start.