Originally Posted by xdrybonesxvalleyx
Lessons would be good, but don't sweat it for the basics.
I WOULD sweat it for the basics - if you have the basics down you can become an effective rider, and in an english saddle it's harder to get the basics IMO. From your OP I get the impression you're not looking to FEI dressage. If you get the basics down, and a solid position, you can move on from there. To be an effective english rider you really need to have the proper seat and mentality. You can learn lots from books, but having someone to help you real-time on the ground would be perfect.
If you can afford it, I'd put the money into some lessons now - you'll learn to move quickly since obviously you've been riding for a while. You'll also learn a good position which will keep you secure for jumping to avoid those spills!
IMO, 95% of the people who say "don't take lessons I didn't and I'm great blah blah blah" really aren't that great, they've just had no one there to say "no, you're wrong". Just my opinion. Lesson with a good trainer are never a bad investment.