Is this too much?

I was hoping to get through school without taking out loans but as a working adult with no support system, it’s been tough to stay afloat. I currently have $4.5k in loans and I’m doing the math and will likely need to take about $12k (in total) in loans. Am I setting myself up for failure? Has anyone taken this much out and it didn’t drag them down financially?

I should add, I’m 33 (will probably be almost 35 when I graduate) so I don’t feel like I have as much wiggle room in terms of time to pay it off.

Edit to add more detail: the loans so far are over 6% interest rate and most if not all should be subsidized.