Revision of  basic IF and instrument.
1.when saying from checklist, look, indicate and verify the reading.
2.When receiving QNH set immediately.
3.When doing carbu heat check check RPM but also Temperature.
4.LOC alive in climb is not necessary.
5.Power management. T/O power/climb/cruise/descend etc...
6.IDENT 
7.When receiving directive, first calculate/visualise on map or paper and then turn.
8.Listen ATIS when you have time.
9.When receiving a clearance, remember the clearance limit.
10. USE  ATTITUDE INDICATOR AS PRIMARY INSTRUMENT 
11. As soon as practical possible prepare next...make it yourself easy.
Good flight.