Does anybody have suggestions on what i can do to be more isolated so that i can hear more of whats comign out of the monitors than the actual instruments???
We can offer some basic suggestions, but unless we know some things about the existing conditions, chances are we are wasting our breath.....er, time

The fact is, isolation is difficult to achieve under some conditions. Wood framed floors common to both spaces, hollow core doors, air gaps or leaks around doors/pipes/other, common HVAC ducts between rooms, common joist cavities above both rooms, and electrical outlets feeding both rooms from the same stud cavity etc are but a few of the culpret flanking paths for sound transmission.
Also,
Here is a little insight. Sound propagates in two ways. Via the air, and structurally. To impede air propagation, all holes, gaps and any place there is an air "connection" between the two rooms must be blocked. Either by caulking, seals, weatherstripping, thresholds and or gasketing. This is your FIRST line of defence against sound propagation from one space to the other.
The next line of defence is MASS. Unfortunately, IF some conditions such common wood floor framing exist, even enormous amounts of MASS may offer little improvement/correction. However, if you have a concrete slab, a fair transmission LOSS improvement may be achieved by adding layers of drywall on BOTH faces of the partition wall and ceilings. But even this is NOT optimum. DECOUPLED MASS is the best assembly bang for the buck. This amounts to ONE LEAF of a two leaf system, decoupled via Resiliant Channel, Staggered stud, or Double wall. However, this also translates into a bigger budget.
So, without knowing what the conditions are, thats about the best I can offer for the moment. I hope that helps.
fitZ