I’m 24, live at home w parents paying $100/wk, earn $95K and my parents pushing me to pay down my investment property debt I owe $300K on . Should I pay down that debt whilst I don’t have many expenses?

My 2.5% fixed rate comes off at end of this year, looks like will be 6.5%. I’m worried about making these repayments what should I do?

Is solar financially viable for my investment property?