What are the steps that can make me a devout Muslim after repeatedly intending to embrace Islam and then relapsing into sins?

We have previously clarified the ruling on abandoning prayer in Fatwa no. 32762, the ruling on making up missed prayers that were intentionally abandoned in Fatwa no. 31596, and the methods that help in maintaining prayers under Fatwa no. 35328 and Fatwa no. 32148. The method of steadfastness, perseverance, and casting off lethargy and laziness is explained in the following Fatawa: 30633, 37334, 35225.