go for broke
move mountains
do one's darnedest
do one's damnedest
give something a try
give it one's best shot
take a crack at
take a stab at
go through fire and water
give something a go
go to the ends of the earth
finish up
give something a whirl
prosecute
attempt
hand and foot
take pains
walk on broken glass
go to the wall
break one's neck
be at pains
strain every nerve
assay
bust a gut
round off
damnedest
cut it fine
endure
keep on trucking
hold out
have a stab
come it
ettle
hang on
wear
do one's best
full send
strive
carry through
give it a try
seek
go to the trouble
have a go
last burst of fire
inclusively
effort
bid
mint
give it some welly
give something a shot