for white male musicians vocal mediocrity is a damn near given so your approach to the craft should be developing a unique style or sound that makes your MUSIC sound good. JT sounded good by having Niggas work on his shit for almost his entire early career. that's why
the white man exists to make good music but not to be good vocalists. the only real exceptions are/were brandan urie, who has been washed for almost 10 years, and Gerard way, who is actually just an exception to the rule. the man is an anomaly