Student or Learner
It's a matter of will or its a matter of will..
Can somedoby tell me what's a diffrence in the meaning of these sentences ?
Yes. The first is grammatically correct. The second isn't.
It's easy to know the difference, as long as you recognize that 'its' is the possessive pronoun of 'it' - The dog bite its own tail - and not a contraction of 'it is'.