Use affected instead of effected. "effect" is a noun, and "affect" is a verb.
You should change this sentence:
Having a baby affected me in many ways: spiritually, financially, and psychologically.
Having a baby affected me spiritually, financially and psychologically.
I bet it certainly did! Most importantly, it probably gives you special insight into the nature of reality and human life.
Your thesis statement must be a sentence that is worth a whole essay. It is like the ruler of the essay.... the queen bee. It is the sentence that the essay was written for.
Do you know what I mean? You have an insight you want to share, so you express it in a sentence and then give 3 supporting paragraphs. Then, you write a nice thoughtful conclusion. But the thesis is the backbone of the essay. YOU have to decide what your thesis is. If you were in a conversation about this topic, what would you say to contribute meaningfully to the conversation? When you write a scholarly paper, you are contributing to a conversation.
Also, google this:
how to write a cause and effect essay