Will I have a hard time getting a tanker job?

Some company will hire you. Where is your location; city/state?
You can ask for pre-hire letters from tanker companies that hire in your area and if they give you a pre-hire, you'll be ok. A pre-hire means they will hire you if you successfully complete cdl school and have the required endorsements; tanker/hazmat endorsements. Then of course pass a drug test.

 

I'd try now and see what happens. If nothing else, you can pull dry vans or refrigerated for a few months, then jump to tankers.

 

I'll give you a list, so try them all, then take the best offer. Some may say wait until you're in school and some may say contact us after you graduate. Some may give you a pre hire now contingent upon successful completion of cdl school and having the required endorsements. Some, such as Superior-Carriers, require you graduate from an approved list of schools.
McKenzie Tank Lines
Superior-Carriers
SVTN (svtn.com)
Schneider Bulk
Tidewater Transit
Girton Propane Service
CTL Transportation
Trimac Transportation
You're in a great area for tankers. Some of these may have "experience required", so ignore that; they all hire new cdl grads. Some, such as Girton Propane Service, don't hire too many though, but worth the time to apply anyway. Girton is pretty diversified and hauls many types of products.
@Thull drives for Schneider Bulk and lives near Baton Rouge.

 

Since you live in New Orleans try Meyer warehouse and trucking in New Orleans they pull pneumatic tankers haul food grade sugar.They were a really good company good pay and home time.Have no idea if they hire new drivers but I'd call and ask

 

As long as those jobs weren't driving related, I don't see the problem. If asked, tell the recruiter the same thing you said here. Of course some companies might say no, but thats no reason not to apply there and see what happens anyway.