I think the DIY way to develop your singing voice is to record yourself singing. #1. You should be fore-warned that your voice does not sound like what you hear in your own head when you sing. This is natural, just accept and move on. When you listen to yourself on a recording you actually hear what the audience hears. You also (at times painfully) hear where you need to practice. I do have to warn you that this can be an emotionally burtal way to learn singing, but I have seen people benifit from it. #2,Once you identify what you need to improve, start practicing the difficult material until you are confident in how it sounds. #3. Ignore how you felt the time you first listened to your recorded voice and record the song again. Your recording voice will not sound so forign, the more you hear it. Now zero in on listening to the things you have been practicing to improve. Once again it can be brutal, but this is the fastest way to get a grasp on using your singing voice.

I have had voice training in college and it helped, but when I started listening to how my voice sounded on the listener's side, that is when I really made progress.

Lessons with a good instructor is probably the best way to develop your singing abilty asap. It will still involve practice, it will still involve frustration, and it will still reward your patient persistant practicing.

But the human voice is completly invisable. When singing you can't see how to finger a note on a fretboard. No diagram is going to teach you how to articulate phrasing. Singing is all internal. Having good instruction is the best path to help you to quickly develop your skills. Good breath control and tonal control are difficult to develop on your own.

Learning voice can be more difficult than learning guitar. But take those lessons you learned about enjoying the process of learning guitar and reapply them to your vocals. It is a journey not a destination. When you get frustrated... slow down and double down on really learning the hard parts. Persistant patient practice pays...if you don't "Should" on yourself... those same practice skill will be your best friend as you become a vocalist.

Singing a song while accompaning yourself on guitar can be EXTREEMLY REWARDING. You now have the skills to succed in learning music. They all still apply. You are just learning a new instrument.

I just reread you post and saw the "beginners only" stipulation... OOPS.

In that case.....never mind. I guess I wrote this post backwards.

I have never tried 30 day singer.