I want to encourage you with a scripture from Proverbs 18:10:
‘The name of the Lord is a strong tower. The righteous run into it and are safe.’ (NRSV).
You might be familiar with this scripture already.
On several occasions in the Book of Exodus, God identifies himself to his people with a different name. For example, in the Burning Bush encounter with Moses, God identified himself to Moses as ‘The I AM THAT I AM’ (Exodus 3:14). After the Burning Bush experience, God identified himself again as JEHOVAH (or the LORD). God said to Moses: ‘And I appeared unto Abraham, unto Isaac, and unto Jacob by the name of God Almighty, but by My name JEHOVAH was I not known to them’ (Exodus 6:3).
In another instance, it was rather Moses who ‘built an altar, and called the name of it Jehovah-nissi [that is, The Lord my banner]; for he said, “Because the Lord hath sworn that the Lord will have war with Amalek from generation to generation’ (Exodus 17:15-16).
Why does God’s name keep changing? For me, God’s name expresses his nature and qualities.