You need to ask help from the writing center. Somebody can probably correct the grammatical errors in your paper.
It needs to be double-spaced. It appears that you used 2.5.
You need to organize the presentation of your argument. For example, you can use the following argument structure:
P1. If belief in God’s existence is deeply problematic, then it’s likely that God does not exist.
P2. Belief in God’s existence is deeply problematic for the following reasons: the lack of God’s concrete manifestation, the unscientific nature of such belief, and the incoherence of God’s omnipotence.
C. Therefore, it’s likely that God does not exist.
You need to consider an objection that directly challenges at least one of the premises and you need to respond to the objection.