As someone that has loosely tried to learn Mathematics over the past decade, I second this.
Self-learning mathematics is really difficult, especially when you don't really know where you stand any more in terms of pre-requisite education.
It's easy to say you're going to dedicate x of hours of time to study Mathematics, but it's easy to drop off, ditch it in favour of the next thing to learn, and essentially forget what you tried to learn. Taking a class will at least physically allocate that time to maths.
Self-learning mathematics is really difficult, especially when you don't really know where you stand any more in terms of pre-requisite education.
It's easy to say you're going to dedicate x of hours of time to study Mathematics, but it's easy to drop off, ditch it in favour of the next thing to learn, and essentially forget what you tried to learn. Taking a class will at least physically allocate that time to maths.