A) Typically, an inmate can be release within 2 to 3 hours with an Attorney Writ Bond. It could take 2 to 3 days before a judge or magistrate sets a bond.
No - if you signed the bond it doesn't matter whether you have a job or not - or whether the bondsman asked you if you did. You are liable as surety on the bond - having a job or not has nothing to do with your liability. Sorry.
Stay in the state of Texas until trial. Do not use any drugs prohibited by law or by the court (which even can include prescribed narcotics). Work at suitable employment. Report on a regular basis to a probation officer and notify such an officer of any address changes.