There is no greater testament to one's love of a job than to make a mythic for it.
Its a long term goal. Accept that you might take a year to slowly chip away at it to avoid burning out, and you'll make it.
You gotta have short term side goals to do also.
Put yourself out there and find other people that want to accomplish the same goal, make friends, join einherjar shouts to buildup your ichor, use those tags and clear assaults, etc. Chip away at it slowly with regularity and over time you will get there.
The first mythic seemed to take me forever, the 2nd one seems much less painful so far. Although i'm not a fan of the nyzul token part again -_-
If I was crazy enough and wanted a 3rd mythic, i'd probably make a tizona.