Take a big white onion that weighs between 100 to 150 gm. Mash this onion and drink the water that comes out of it, in the morning before eating anything else. With the will of Allah, in 10 to 15 days, the closed valves of the heart will open up.
Note: after drinking the onion juice don’t eat anything for one hour. Also if you are unable to find white onion then take red onion instead.