"Listen, O Israel, the LORD is our God; the LORD is one." Instead of thinking of the Shema (שְׁמַע) as a commandment to be externally obeyed, you can regard it as a prophecy about your inner life: "You shall love (וְאָהַבְתָּ) the LORD your God with all your heart, and with all your soul, and with all your might" (Deut. 6:5). Only God can quicken a dead heart, after all, and fill the soul with holy affections. Only the LORD can impart to us strength needed to take hold of promises as He writes His Torah upon our heart. As it is written, "For from him and through him and to him are all things. To him be glory forever" (Rom. 11:36).
God will take away your stony heart and give you a new heart, along with a new spirit to be willing to know His love, as it is written, "I will give you a new heart, and a new spirit I will put within you. And I will remove the heart of stone from your flesh and give you a heart of flesh" (Ezek. 36:26). Your new heart will be like Yeshua's own: open, accessible, flexible, trusting, sharing, emotionally alive, able to feel, pulsating with God's energy and power...
The promise is this: "you shall love," since love is what is most true about who you are... You shall love the LORD, since He is the Source and End of all real love. You will love the LORD more and more, as you grow ever closer to Him and one day will behold Him panim-el-panim, "face to face." You shall love the LORD with all your heart, which implies God has indeed given you a new heart to love Him with; and with all your soul, which implies that you are enabled to truly feel, and that your heart is made tender and sensitized; and with all your might - that is, with all your "muchness," your "substance," or that reality that makes you who you really are in the LORD... May the LORD fulfill this prophecy in you, friend.