When practicing handstand for the first time, practice against the wall first.
Hold your hand and stand hard.
At first, your waist has no strength, so you don't really need strength.
When your arms are strong, you begin to learn to use the strength of your waist.
Try to lean against the wall below the waist. If you want to stand upside down, it is above the waist.
This is very important.
When your waist is strong, you can try to do a beautiful and straight handstand off the wall.
In all exercises, the legs should be straight, so that even if you do bending handstand in the future, it will look good!