How can I be morally 'good' and make sure I'm not seeking moral dessert? I'm trying to be a good person but it's impossible to do that without deep down inside wanting something out of it. I don't mean that I'm doing good things to get something I want. I don't feel like I deserve something because I did something good. However I don't think anyone can say that they don't do something good without having any selfish thought of wanting something because of it. Even if that thing is wanting to be seen by others as a good person. That's all I want. I am just afraid that what I'm doing doesn't count as good because I want the littlest thing out of it. I'm afraid that I can't become a good person because of this.

You write "I am just afraid that what I'm doing doesn't count as good because I want the littlest thing out of it." That would only be true if actions had to be completely free of mixed motives to count as good. But that's not very plausible.

Consider two scenarios. In each of them, you're in a coffee shop. In each of them, the person at the next table gets up to leave, having forgotten to pick up the wallet that you see sitting on the table. In the first scenario, the person is someone you'd like to have an excuse to meet. In the second it's not.

Are you the kind of person who wouldn't do the right thing in the second case? If you are, you're right to worry about your moral state. If you are, then you're the sort of person who may do the right thing, but only if there's something in it for you. But I'm betting that in both cases, you'd get the person's attention and point out that s/he left the wallet behind. The fact that in one case, you have an extra reason doesn't show that you wouldn't be doing good.

We might put things metaphorically in terms of forces. In the case of the person you'd like to meet, there are two forces acting on you, getting you to make sure the wallet doesn't get left behind. One of those forces has nothing to do with doing right. But the other does, and if it would have been enough by itself, you're hardly to be blamed for getting a benefit as an incidental side effect of doing good.

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