Because you are a beginner, two or three days in the first week is the main thing.
Such as Saturday, 1.4.25. Or 1.35 246, be sure to have a rest, because you are slim, need less time and have a heavy weight.
Two or three groups are enough for each movement, each group can play 8- 12 at most, and the rest time is about 2 or 3 minutes.
When you enter the gym for the first time, you can choose half of the maximum muscle strength you can lift to warm up.
The following is for your reference.
Number of groups (excluding warm-up)
Under the chest 2-3 8- 12
Back 2-3 8- 12
Shoulder 2-3 8- 12
Triceps brachii 2-3 8- 10
Hand biceps 2-3 8- 10
Leg 2-3 10- 15
Abdominal 2-3 15-25
As others say, it is important to get in touch with diet from the beginning. Protein cannot be less. Eat more carbohydrates than usual every day, and take plenty of supplements before exercise.
However, this is your schedule for about three days a week. If it is more than three days, it is not applicable. Practice the whole body in turn. If you have any questions, ask me.