“Why wasn’t I healed?!?”

Could you please comment on the doxology in Romans 11? Where can I find the 10 Commandments? What purpose do they serve for the Christian? I tried to get healed but wasn’t. Is that my fault? Someone told me Jesus is only the Savior of the Jews. What should I tell him? It bothers me that more churches don’t talk about Israel. What are your thoughts? I just heard a pastor say tongues is for every believer and a sign of salvation. Is there any truth to that?