Is losing 65lbs in six month good?

1-2 lbs a week is a healthy amount

It's too much and it can lead to other health issues.
Losing weight should ideally be gradual.

it's great progress. Congratz. hope you become the version of you that you want to be :D

I wish I could comment more, but that seems a lot and maybe an unhealthy goal?

not just good, stunning. Wish I could manage that

If you were overweight and needed to lose that much it is good, but it does seem a lot.

Losing weight the healthy way seems fun

Yes, if it's part of an intentional plan to do so.
That's at the higher end of the scale and is supposed to be a rate which allows your body to better handle the changing amounts of skin (so you are less likely to look like the "biggest loser" people who need "plastic" surgery to remove huge bits of loose skin).

If it happens UNintentionally...NO.

I wish I could lose 25kg