If I was as informed at 27 as I am now (69) and with the experience I have gained over the last 25 years doing my own investing and had already put 30,000 in a TFSA  at that age  I would say I have no retirement worries.
Invest the whole thing in Blue Chip dividend paying stocks, reinvest the dividends over time and in 30-40 years you could easily have a couple million !