Yea, my sentences are self-centered and I'm tempted to use I a lot. As an Ayn Rand fan I see no problem with that. :D
Seriously though: to create some variation in my sentences, what I sometimes do is switch over to you or one or just "there is". It doesn't always seem correct to me, but others seem to talk in that you-form a lot too, even though they're talking about themself, or about everyone.
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"The aim of the wise is not to secure pleasure, but to avoid pain." -Aristotle