TS before thinking of going down to GL or FL route...maybe you can read at this thread if you have not :
https://sammyboyforum.org.nz/showthread.php?t=743370
Many bro in same situation as you and so am I.
5 years of marriage is considered quite 'new; and still need to 'adjust' to one another wants and needs.
Have a talk to your wife about your needs and also need to address what is her issue of not wanting to have sex...try to work out some ways...It's not easy and I'm married for more than 10 years still working on it...