I have a universal weight machine and I am wondering if I am doing enough weights as far as each muscle etc etc?

I just started adding them into my workout routine faithfully this week. I am splitting them up.

On Monday and Wednesday I Do: I do 3 sets of 10 the last set is hard to finish. When I can do that I know to up the weight.

This is what it says on the machine as far as the exercise and what muscle group it works. There are others that I can also do but these are the ones I am doing right now.

Pec Dec--Pectoralis Group
Incline Press--Pectoralis Group, Triceps, Deltoids
Lat Pull Down--Latissimus Dorsi, Phomboids, Biceps
Seated Row---Posterior
Tricep Pressdowns--Triceps
Back Extension--Erector Spinales

Then on Tuesday and Thursday I do:

Abdominal--Rectus Abdominis, LLiopsoas
Squats--Quadriceps, Hamstrings, Gluteus Maximus
Standing calfs--Gastrocnemius and Soleus
Leg Extension---Hamstrings
Leg Curl----Quadriceps

So do I need to add anything to the weight training would be my question?

Thanks, Sharon