1 or 2 sets for the isolation exercises? so your arm day will be like 8 sets total? dope.
7-8 months? and you still consider yourself a beginner. A rare humble man.
No, your 5 day split is really not good at all.
In fact it's bad. Shoulder day? do you realize that after training for the marathon period of 8 months you cannot lift enough with one body part for it to warrant its own day.
Your shoulders will be recovered from training about 2-3 days after you train them. then they get to sit around shrinking while you go off and pump up your abz and those pythons.
5 day splits are for advanced athletes whos lift numbers re high enough to actually warrant 5 days of rest. They lift 13x more total pounds per session with one body part than you, that's why they need more days resting that part.
I'd say drop the 5-day-path-to-lifting-the-same-weight-all-year and go pick up a solid push pull or upper-lower split.
Then again im kind of being a douche noz here so maybe dont listen. who knows.