你对，没有蹲监狱

http://www.txdps.state.tx.us/DriverLicense/AlcoholRelatedOffenses.htm

DWI for Minors

A “minor” is any individual who is under 21 years of age. Minors who are convicted of DWI will:

Receive a one-year driver license suspension, and
Be required to complete a 12-hour class in an authorized Alcohol Education Program.
Failure to complete the Alcohol Education Program will result in a 180-day suspension.
Subsequent offenses may result in a one-year suspension.
A minor may also receive a 90-day driver license suspension if an interlock ignition device and community service is ordered by the presiding judge. (A special driver license must be issued to drive with an interlock ignition device).

请不清律师看你，主要看看如果认罪，学校里有什么处罚。