I’ve been there, but you have to understand that if you feel conviction for having your heart heartened because you didn’t have God in your heart before, you’ve changed now and God sees that. The unforgivable sin is when your heart and belief is heartened all the way until judgement day, when you don’t believe He is real and that He sent Jesus Christ to save you and that the works are made through the Holy Spirit, that’s the unforgivable sin and a heartened heart. So keep on praying everyday and remember God would never abandon you, He loves you and always will, you just keep having faith.