Help me get back to School to give a brighter future for my kids

These are my children. 2 boys and the picture of 2 girls : on the right is my daughter.

I am blessed to have children who are smart and who cares a lot about family values. Awards and recognitions is something we always expect every year in school.

What has been bothering me is that I cannot afford school tuition fees anymore and how can I help them go to College if my income is limited.
I got pregnant at a very young age therefore, I dropped out from college. Getting a job is hard as most of the jobs I know I can do best and showcase my greatest talents will not accept me as I didn't have a college degree. I felt so devastated and depressed.
In my previous jobs, I always get rewards and get promoted easily because they see the potential in me. However, just because I i didn't have a diploma... I can't level up anymore. The time and effort I have been doing is not compensating on what my family needs.
My small income mostly goes towards bills while putting food on the table is also getting harder and harder.
I know this is not a unique story but, I feel like I need to lower my pride and seek any type of help. I can't imagine my kids being heartbrokened because I can't give what they need or put them in a good school. I don't want them to have the same dilemma i have now. They are smart kids and I hate to see their future be put to waste.
I have been feeling depressed and have been praying to God for a miracle. To help me with finances so I can improve our situation.
I have been inquiring in different schools for fees so I can put myself back to school however, I can't afford the prices they have.
I don't know where else to go and ask for help.
I really feel sorry ... I don't know what else to say. I just know in my heart. God is listening.