IMO I would say that you need to practice any exercises that you are not comfortable with, to take for example the EASA PPL-H as a template with the aim of being able to do all the exercises to a good standard.
Practice those on your own that are safe to do so, take an instructor with you for those that require their input (autorotations for example)
If you give yourself some structure for your remaining hours rather than just fly from airfield to airfield, you will have no problems later.
should you wish to do an instructor course for example where the aim is to teach you to teach, not to rebrief you how to fly, you would be glad you did all this, but even for CPL the philosophy is the same I think.
Exercise 1a: Familiarisation with the helicopter
Exercise 1b: Emergency procedures
Exercise 2: Preparation for and action after flight
Exercise 3: Air experience
Exercise 4: Effects of controls
Exercise 5: Power and attitude changes
Exercise 6: Straight and level
Exercise 7: Climbing
Exercise 8: Descending
Exercise 9: Turning
Exercise 10: Basic autorotation
Exercise 11a: Hovering
Exercise 11b: Hover taxiing and spot turns
Exercise 11c: Hovering and taxiing emergencies
Exercise 12: Take-off and landing
Exercise 13: Transitions from hover to climb and approach to hover
Exercise 14a: Circuit, approach and landing
Exercise 14b: Steep and limited power approaches and landings
Exercise 14c: Emergency procedures
Exercise 15: First solo
Exercise 16: Sideways and backwards hover manoeuvring
Exercise 17: Spot turns
Exercise 18: Hover OGE andvortex ring
Exercise 19: Simulated EOL
Exercise 20: Advanced autorotation
Exercise 21: Practice forced landings
Exercise 22: Steep turns
Exercise 23: Transitions
Exercise 24: Quick stops
Exercise 25a: Navigation
Exercise 25b: Navigation problems at low heights and in reduced visibility
Exercise 25c: Radio navigation
Exercise 26: Advanced take-off, landings and transitions
Exercise 27: Sloping ground
Exercise 28: Limited power
Exercise 29: Confined areas
Exercise 30: Basic instrument flight
Exercise 31a: Night flying (if night rating required)
Exercise 31b: Night cross-country (if night rating required)