Haven't gone to couples therapy but we have been reading some books that have helped save our relationship without a therapist.
The argument free marriage - fawn weaver
Learning to love yourself - gay Hendricks
Getting back together - John gottman
And my favorite
The seven principles of making a marriage work - john gottman
I'll mention that anything by john gottman will be a gift to read. The 7 horsemen is another good one by him.
I highly recommend these books.
Good luck on your journey with your spouse