Employment History

Thank you all for the advice!
So as I was trying to piece together my work history I forgot two other jobs that I held,
One was working for a racing school that is now closed down and another job working in racing operations,also when I was 13 I held a separate job in a different grocery store which would mark the beginning of my ten year work history.The three mentioned jobs,the racing ones were temporary and just an occasional job for different events and I had left the grocery store mentioned above because I had to move.

I've never had any legal trouble,never tested positive for drugs and my driving record is clear.
My motives for choosing this career field are not really financial or unrealistic IMO,I enjoy driving and the level of commitment that being an OTR trucker requires and I have no partner or children at home to tie me down.

I've been hearing two sides from different folks,some say that my MVR is looked at more closely while others are telling me that it is all looked at closely.
I'm going to be doing some research later on in the day and make a few calls,I am a bit frustrated right now,going to turn in for the night.