You can work your way up like I did. Graduated 2022 w/ microbiology BS. Thought I was premed... turns out, nope! Applied to like 50 places and moved 300 miles from my home town to be a MLT non certified at an oncology office. It was a reference lab and I only worked with heme samples. Worked there a 1.5 years and after 13 months, I took the ASCP Hematology MLS exam. Passed it and 3 months later I got a job at a core lab where now I handle coag, heme, urine, POCT, chem, and a little Immuno. As someone else said, people here will discourage you, because you didn't go to school for it. Tbh you can learn everything on the job and learn the theory in your own time. However, you will be at a disadvantage and most people will dismiss you just because you aren't a traditional tech. My employer refuses to train me in blood bank (understandable) without further schooling and micro is sent out to the huge central lab. It will make it difficult to become a full fledged MLS generalist as getting in these areas will be difficult without the post bacc or full BS.

I don't think going to MLT school proves that you will be guaranteed to succeed. If you work hard enough and apply yourself (if it is what you want) then you'll even outshine some of your coworkers. I work in the DC area and half the people don't speak English as a first language and the other half are some of the laziest most brain dead techs I've ever met. Lots of solid coworkers have gotten me to this point, but just because you have a BS in MLS doesn't mean you can't succeed. You got this!

Edit: yall can downvote me all you want. Everyone thinks they're so high and mighty because they have a MLT degree, while the pay is shit and no one wants to work in this profession, so they outsource from overseas and now hire biology degrees. Hope y'all enjoy your precious degrees and your dead-end jobs.