Reply To: Do i exist?

The only true existence is Hashem, as we say ain od milvado. Not just that there is no other god or power aside from Hashem, but there is nothing else that exists at all. The only life in this world is Hashem’s lifeforce as it says ki imcha mekor chaim. See shaar hayichud vhoemuna of Tanya for more understanding on this or ask. Luckily a very real part of your identity is the part of Hashem within you, and that really does exist. The yetzer hara part of your identity is just an illusion which will eventually be revealed as fraud. Hope this helps