It says Return Status:Ready to mail, I’ve already printed & mailed it in to the address back in February. It’s now May Why haven’t I received my tax return check yet. ?

what does the IRS website show for the return status?
<a rel="nofollow" target="_blank" href="http://www.irs.gov/refunds">www.irs.gov/refunds</a>

TT will always show ready to mail, if you mailed it because it has no way to know if it was actually mailed.