But, you see, abundance is just something of a training ground for something greater. Something more on a macro, universe, level. You don't need to do anything super-generous to feel good about abundance.
When the spirit learns to create, even if it's something selfishly material or situational...that spirit grows. Eventually, there comes a time...maybe after a fairly long time...that the spirit will have had its fill of creating earthly material things and situations. Been there, done that.
At that point, the spirit starts to become interested in spiritual growth for its own sake. At that point, real spiritual growth kicks in.
Since we're all spiritually connected with each other and the Universal Mind, the more the spirit grows, the more the Universal Mind grows as a whole, as well. Everyone wins.
So, go ahead and manifest away as much as you want. Attain as much as you want. It's all just part of the universe's way to grow you, spiritually. Just like a baby learning early skills that build on themselves for eventual greater knowledge, so too the manifestation of material and situational things are just the early spiritual skill training the universe puts you through for greater spiritual abundance later.
Besides, all initial desires originate in the Universal Mind to begin with anyway. So, blame the universe if you want a new 60-inch TV set.