2. It may be that there is a problem with the bone position or habit of the right shoulder itself. I have been carrying a shoulder bag for many years, making my right shoulder lower than my left shoulder, but it is not obvious. The right shoulder is more backward than the left shoulder. In fact, the right shoulder is backward. Like the right chest, the right shoulder is more flexible than the left shoulder. Therefore, when pushing the chest, the right shoulder is low and it is not easy to exert force. If the right shoulder is artificially raised, it is equal to. The solution to this problem is to change the backpack habit. When the two chest muscles are different, use single-axis bench press to practice one side and find it bit by bit, but it is difficult. You should also see if your right shoulder and left shoulder are asymmetrical.
3. Squat is not all about leg strength, but waist strength is more important. You must wear a belt when squatting, you must, you must, you must regret it. In addition, if you don't practice, your leg strength will definitely be weak. You should practice everywhere, a little. You'd better step on a film when you squat, and raise it a little, like this.
For the two problems you mentioned, we must start with the loose weight, and don't just focus on the heavy weight. First, we should focus on the movements and feelings, because when you exert your strength, which muscles exert your strength is very important. The movements must be well grasped, must be done, must be done, and squat in groups of ten. If you still have strength after four groups, don't add it.
Let me add that the angle of the right arm and the movement of getting up are different from those of the left arm.
Find someone to watch, find out the asymmetry between the two sides, and correct it with a small weight.