I could use some advice on a strength training schedule

Here is the schedule my trainer has me on:

Day 1: Back
Day 2: Chest/Biceps
Day 3: Legs
Day 4: Shoulders/Triceps

5 days of a week of cardio and abs

Hope that helps?

I would suggest not doing abs every day. Do you exercise all muscle groups every day, i don't think so. Abs are muscle and like other muscles need rest.

You should start your week with the biggest muscles first and go down to smaller groups.
Like BiglewM wrote you should change it up but not necessarily schedule but exercises you do and reps.

Just google it and you'll find ton of exercise programs you can fallow.
I just finished M&F rock hard workout and it was great. Its 3 month and new schedule every month.But its 6 days a week no cardio.

Plenty 4 day workouts where you can do cardio on off days.

There are tons of splits that you can do, I'll tell you mine and my recommendations for you. You can make progress with one split, the important thing is to change up your exercises.

Your split should be separated in the following groups (in my opinion):

Back/Biceps - The reason why is because your biceps are a major component in all pulling exercises. You're working it out already, so it's always good to isolate them.
Chest/Triceps - Again, your triceps are used in all pushing exercises (including shoulders), you can isolate them on either chest or shoulder day, whatever you feel is better. Triceps are used less on shoulder day so you can train with heavier weight.
Shoulders/Upper Back - By upper back I mean your trapezius and your rear deltoids. (The deltoid is still considered your shoulder but the rear delts are located in the upperback area)
Legs - Full focus on legs.
Arms - Biceps and Triceps can be thrown in every 2 cycles of the split

Now, I see a lot of upper body/lower body splits but I'm not a big fan of them especially for muscle growth. The reason why, is because major muscles are major muscles. The amount of energy required to fully workout your back is enormous, to do chest on the same day is far too much in my opinion. Plus, in order to hit muscles like the back properly you have to do many exercises to efficiently do it and lets be honest, no one wants to workout for 3 hours.

It's important to separate your shoulder and chest day as far apart as possible. The reason why, is that you use your front deltoids on chest days. You'll risk injury on shoulder days or on chest days and you won't have maximum potential to lift your heaviest.

I'm sleepy and lost train of thought though lol, if you have any more questions I'll post a reply in the morning.