Sounds like you are asking for the answer to a specific question. There is a concept of goral haGra and other types of things like that but you probably have to be on the right level for those to work. Ask your LOR before trying something like that.
If you feel that you need a sign to help your emuna, here is a story about that. Correct me if I’m wrong, I might have some of the details wrong. I think it was about R’ Yisrael Salanter.
The Rav went to an inn that he had been to a few times and saw that the innkeeper was no longer frum. He asked him what happened. The innkeeper told him a story about someone who had tested Hashem by purposefully doing an aveira and asking Hashem to smite him down for it. The man was not immediately struck down and this affected the innkeeper’s emuna.
Later on, the innkeeper’s daughter came home and showed them a certificate she had won for being a great singer. R’ Yisrael asked her if she could demonstrate her great ability. She was shy and refused, when he pushed her to prove her ability she said “why must I prove it to you, I have this certificate and that should be proof enough”.
The Rav turned to the father and explained — Hashem doesn’t need to prove to us His power, the Torah is His certificate. The Torah tells the story of Yetzias Mitzrayim which shows all of Hashem’s powers. We tell it over at the seder every year to remind ourselves of its truth. We don’t need our own miracles until such time as Hashem decides to show himself again at the time of the final geula.
That being said, if you pay close attention you will realize that everything that happens in life is its own small miracle. We make 100 brachos every day, thanking and praising Hashem for the daily miracles he performs for us.
http://www.theyeshivaworld.com/coffeeroom/topic/everything-arounnd-us-screams-hashem