If you allow yourself to lie, it will be easier to do the second or third time, and then get used to it.
Do not complain about problems, because God has a purpose for your struggle right now. Learn what God wants to teach. Do not stop trying when failing. Because failure is the way God taught us about the meaning of sincerity.
Do not give up on what you think is right even though it looks impossible. As long as there is a will, God will give way. Do not make mistakes as a reason, because he should be your motivation to keep moving forward.