It does reduce the points you get from age by a significant amount, so you would have to make up that shortfall somehow. Check out the eligibility requirements for provincial nominations to see if you qualify.
To be extremely honest with you, its kinda late. But if you do have contacts here and people ready to help out, then its kinda workable. Because most employers here unfortunately prefer young employees and it is not easy to get a job as well. If you are pretty stable in your current country then would not advice to take the plunge. But this is only my suggestion, you can do as you please. Good luck.