Haven't read all the replies so this may be a repeat but since you have no "experience" I would advise learning a specific skill and learn it well. Learn some front end or back end coding for trading systems. There are too many experienced workers out there for hiring managers to select from...
the 30 yr looks good after the full tick switch. Decent depth thus far (should get deeper as the weeks progress) seems to move well with the other contracts as opposed to being in a world of it's own.
Assuming FIFO contracts:
After disclosed qty is filled the next one up goes to the back of the line, that's if any sneak in between. Usually this is only a factor for very large icebergs and/or slow markets.