10 Ways to Build Up Your Confidence in God

Regularly repent and confess your sins. Let His blood make you clean so you can come to Him with confidence (1 Jn. 1:9).
Welcome trials. Trials will build your character and holiness, which in effect will build your faith (Ja. 1:2-4).
Obey Him regularly. When we fear God and obey Him in everything, the Bible says He will give us a strong confidence (Prov. 14:26-27).
Meditate on the Word every day. Meditation will help you get to know God and His Word. It will help you to abide in Christ and to keep your mind on things above (Col. 3:1-2).
Practice self-talk. This is part of what we do when we meditate. When you speak the Word of God back to yourself, those words will empower your faith.
Fellowship with others. Don’t neglect to meet together with other Christians. This is God’s designed way to keep us encouraged (Heb. 10:24-25).
Read about the heroes of faith in the Bible and from other Christian books. Imitate their confidence (Heb. 13:7) and let them be your heroes.
Purpose to spend more time in prayer. Through prayer faith (confidence) is exercised and made more perfect.
Constantly listen to God and cherish the desires He gives you. Pay attention to the Holy Spirit’s urgings. He will direct you in how to trust Him.
Visualize what God wants to give you. If you have prayed about something and you are sure God wants you to receive it, then visualize it and believe that it is already yours (Mk. 11:24).