Well, if you want to get in a band, VERY!
A lot of my students are instrumentalists who are a bit shy when it comes to their vocals.
Widening or narrowing vowels fixes a multitude of problems
Enjoy what you’re singing. Embrace it and make it free, but please remember, If you have any discomfort whatsoever you must always seek out a professional voice coach. Following exercises from a video or a blog is sufficient if you are performing them correctly, but an understanding of YOUR voice and YOUR areas of improvement is essential before undertaking any generic voice exercises.
Planet drum voice coach