I filed my taxes on January 29 2019 for the 2018 tax year it’s April and I haven’t received my state tax return was wondering why not

[VolvoGirl]

Did you efile?  Was your return Accepted?  Double check your efile status here
https://turbotax.intuit.com/tax-tools/efile-status-lookup  

When you log into your account you should also see the status and if it was Accepted or Rejected, Started, Printed, Ready to Mail, etc.  what does it say?

Check for a state refund     https://ttlc.intuit.com/questions/1899433-how-do-i-track-my-state-refund
Make sure you are using the refund amount from your actual state tax return and not the combined amount Turbo Tax showed you at the end.  That was for federal and state combined.