Singing coach would be the best answer. But outside of that I’d say the first step would be to train your ear. Pitch is more important than the quality if your voice. Plenty of singers get by with unconventional voices because they can sing in tune. And even someone with the beautiful sounding voice will sound terrible if their pitch is bad. Developing a better sense of pitch is possible, even on your own over time. Look up ear training voice exercises.

Yeah, look at time waits.