Apart from really changing your lifestyle to stream less/do data heavy stuff somewhere else where you can get free internet (upgrading operating systems, uploading videos, updating you phone, etc.). you're probably stuck with what you've got.
You could look to see what other ISPs are in your area, but usually one is not going to be much better than the others unless you can get a great introductory rate. I, for example, have one Cable ISP that services my address and a few DSL. For the price of cable, I can only get 1/2 that speed with DSL, so I am stuck.