What should I do so that I don't lose hope in Allah's provision of a righteous husband, and will having a good opinion of Allah make that a reality for me?

Whoever thinks well of Allah, Allah will be as he expects Him to be; as stated in the Hadith Qudsi: "I am as My servant thinks of Me."

Our advice to you is to remain steadfast in your good opinion of Allah and to persist in supplication. Do not despair of its acceptance, for the Prophet, peace and blessings be upon him, said: "The supplication of one of you is granted as long as he does not show impatience and says: 'I have supplicated, but I have not been answered.'" And Allah Almighty says: "And whoever fears Allah - He will make for him a way out And will provide for him from where he does not expect." And Allah Almighty says: "And whoever fears Allah - He will make for him ease in his affair."