Believe him.

These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.  And this is the confidence that we have in him, that, if we ask any thing according to his will, he heareth us:  And if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him. 1 John 5:13‭-‬15 KJV https://bible.com/bible/1/1jn.5.13-15.KJV

Don’t worry so much…

Therefore take no thought, saying, What shall we eat? or, What shall we drink? or, Wherewithal shall we be clothed? (For after all these things do the Gentiles seek:) for your heavenly Father knoweth that ye have need of all these things. But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you. Take therefore no thought for the morrow: for the morrow shall take thought for the things of itself. Sufficient unto the day is the evil thereof.
Matthew 6:31‭-‬34 KJV
https://bible.com/bible/1/mat.6.31-34.KJV