Hello, i've had crossed(squint) eyes since i was a child i'm now 29 and i was wondering if it's too late to get it fixed?

No: Surgery can often correct it. However if you already have a lazy eye, the vision will not likely improve.

Usually fixed: At early age. However you can discuss with an ophthalmologist if you will benefit from such surgery

Crossed eyes. : You should consult with an ophthalmologist to see if you can still apply the techniques they’d use in younger patients to fix the issue.