It can be done, OP, but it's not easy.
I went back to work, unqualified job, one day per week, and worked for nothing for two years, due to childcare costs.
But, I was able to increase my hours gradually to full time by the time our youngest started school.
We lived rurally and 400 miles from any support network.
Over time, things got better, and with the support of paid childcare, I eventually moved on into better jobs.
My youngest was born when I was 25, so a little younger than you at the time, but I have now had 25 years in a great job, at the top of my game.
Time is on your side. You need to make the effort if you want to succeed.
Crucially, DH was fully on board and we have always had an equal relationship.