45 & 42 yo couple, $150k combined income.
Upgraded to a condo in 2003, now fully paid up.
Condo worth $1m.
Total net worth, including condo, $1.5m.

Any advice how we can retire in 15 years time?
What do we need to do to prepare for our retirement?
We save $30k pa in cash and CPF combined.
Pls help. Thank you.