stick it out (?.)
- be unflappable
- bear up
- come up fighting
- die hard
- get along
- get home free
- get on
- go on
- go on with
- hang in
- hang in there
- hang on
- hang tough
- hold fast
- hold on
- hold out
- hold up
- keep at it
- keep up
- live through it
- live with it
- make out
- manage
- never say die
- not back down
- not budge
- not flag
- not give up
- not submit
- not weaken
- persevere
- persist
- remain firm
- ride it out
- see it out
- see it through
- stand fast
- stand firm
- stand pat
- stand up
- stay it out
- stay put
- stay the distance
- stay with it
- stick
- stick fast
- stick it
- stick out
- stick to it
- stick with it
- survive
- sweat it out
- take it
- take what comes
- tough it out
- weather
- weather the storm