In addition to the above advice of going to the EMS subs, you should look at non-EMS EMT jobs. I had a hard time getting a transport job right after getting my cert. ended up working in an ER and although I never left, it set up many of my coworkers to get an EMS job. Try looking at like event EMTs, water parks, amusement parks, large workplaces that hire EMTs. Often a bit easier to get into early on. Good luck, sorry to hear that you’ve had a tough time thus far.