If you asked this question 5-10 years ago, I will answer yes, higher education is very imporant for success in life.
Now, more important than formal education is experience, ability, recognition of real opportunities etc.
For example, even with only primary school and basic knowledge in English, and Internet connection, anybody could buy some bitcoin 10 years ago and become very rich today

I don't say that higher education is not important but is less important than before.
Thats a very good point. Some also say, the most successful people didnt even achieve so much with regards to their education. I dont believe in school systems either, numbers do not measure a persons intellect and knowledge. We are all different and we excel in our own unique ways if only the society can see this, sadly no. Educational attainment is important in some countries, it is a basis if youre qualified for a job or any responsibility. I think its good but the common problem is discrimination of the attainment plus the attended school. Some employers offer higher salary to those who went to prestigious schools, rather than give them to employees whom are scholars at public/unknown schools. Anyway, just remember, whatever you achieved, be proud of them. Your success is your success stop comparing yourself to others.