The bail bond amount is the full amount of the bail that is set by the court. The premium is the dollar amount charged by the bail service provider for providing the pre-trial release service. Usually this premium is 10% of the bail amount.
Bailing someone out of jail who has a history of untrustworthy behavior can create headaches. You're essentially agreeing to put up 10 percent of a bail bond that could be tens of thousands — or even hundreds of thousands — of dollars. If they fail to show, then you went to all that extra trouble for nothing.
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.