Hello!
After installing UTAU, you might want to practice using UTAU and get used to its functions by practicing using other people's UTAU and USTs (UST is kinda like MIDI file but with "lyrics" on each note like か or "ka" and settings for vibratos, flags and "pitch bends"). You can practice with Vipperloids (all Vippers what I know has CV and VCV voicebank) or any other UTAU that you can find in Showcase.
I hugely recommend to practice using exiting UTAUs before making your own!!!
And if want to make own UTAU, I recommended to start from making simple CV first! To record VB, you'll need reclist(=recording list), don't record randomly random sounds from Wikipedia, use resources! To record VB, you'll need Audacity or OREMO, both are free and for Mac and Windows. I recommend to use Oremo as that program is especially made for UTAU VB recording, it's faster to record in Oremo than in Audacity a VB. I suggest to use Audacity only if you really cannot use anything else (on Audacity, remember to save all recoded sample as .wav 16bit and 44100Hz. If wrong bit, it will not work on UTAU).
I hugely recommend to create a sample CV voicebank as you really first UTAU voice library. Yes, CV might not be as "human-like" sounding and it's more choppy than VCV or CVVC but trust me, CV is not that bad if you can actually record, use and configure sound settings (oto) correctly. CV teaches a lot how each setting of oto (blank, overlap, preuttr etc) actually works and it's the most simplest VB method to record and create out there. I recommend to NOT skip learning CV!!!
Also, it seems that you're Mac user. If you have any plans to release your VB for anyone's to use, then I recommend to check this tutorial how to make Mac configured UTAU VB working in Windows:
http://utaforum.net/resources/how-to-make-mac-utau-voicebank-compatible-for-windows-users.314/
I hope that you find my post helpful. If any questions, fell free to ask again or send me personal message (or "start conversation" on this forum).
[doublepost=1503046968][/doublepost]EDIT: Sorry, I did misread this post question... ><;;; Please, fell free to ignore my previous post
why I cannot read English lately, welp