Should I retire now?

I presently in a quandary if I should already retire or not. You see, I have reached the number of years in my company when I could already avail of the full retirement benefits, including the monthly pension for life. And at my age now, I know I can still get an employment or go freelance. This would mean an additional to the pension I would be getting.

However, I'm also having second thoughts because I know I still do not have enough savings and investments. My kids are still in school and as a single parent, I have no one except myself to depend on. Well, that's my dilemma for now and I know I really have to think things over and over before making the final plunge.