Have faith in the programming, don't deviate or start attempting to "outsmart" the system because "your body" is different or you "don't like" certain lifts ie subbing in some type of jank 90lb hang-clean jerk-press in place of strict and controlled OHP & PC executions. You'll only set yourself back in big ways.
Start with very low weights, you need to train the motion and build the muscle memory both in your body and your mind, and this takes a lot of time. If you can only do two reps at a given weight, dropping it down by five pounds is not the best idea for your first week of SS. I would also say that as your body and experience develop, the loads will begin to feel significantly different - or more appropriate or inappropriate - depending on how bad your form is deviating. These are not signs that your body is failing ie your knees hurt, it is a sign you are processing the load incorrectly. Don't be too proud to examine your technique or overzealous to move extra weight in any given session.
For example a year ago my work sets on Bench were 95 pounds, today they are 195. I had a lot of stalls in between there because "my right elbow always hurt" and my form was bad in general. My elbow always hurt because I was squatting high bar and actually supporting the weight with that joint, although I did not realize it until looking back at my form and re-watching the SS videos for the third time. Once I corrected this, I started failing in more traditional ways that helped illustrate where my form was off. So I completely threw out my preconceptions of what a normal Bench felt like, learned correct setup positioning and loading order and have been able to make some gains over the last six months.
A lot of people have unrealistic goals for losing fat, spot reducing fat, gaining muscle mass or implementing "specialization routines" well before they can perform even a single double-body weight lift. Save yourself the time and put in the hard work up front, you'll see the payoffs in due time.
But for me, in my experience, the best way to build overall strength are heavy squats, supremely heavy deadlifts, monster heavy bench, and weighted pull-ups.
