Pull/drag yourself up by your (own) bootstraps verb phrase
To improve the situation by your own effort without relying on others
I pulled myself up by my bootstraps to run my business.
I left school at 14 and dragged myself up by my bootstraps to open a store.
My parents didn't help me. I pulled myself up by my own bootstraps.
Adam pulled himself up by his bootstraps to earn money.
Adequate measures or actions
To do one's best or try one's best to do something
If you desire something good or appealing, you must make the necessary effort to acquire it.
To work really hard in order to attain something.
The verb "pull/drag" should be conjugated according to their tense.
This idiom dates from the 1800s. Boots have straps to help the wearer to pull them on.