mobile

I bought an HTC Desire 510 few months ago cause my Xperia ARC died (was the best phone I ever had).
Now I am very disappointed with the HTC 510, mainly cause of it's awful operating system bundled by google ALL OVER the place :(
The user interface is a one big disaster, so much annoying and unnecessary stuff... besides the annoying bloatware (parental control app? srsly?)
I really wanna root this phone and change it's OS to those similar of gingerbreed, cyanogen etc but I don't know how to do this with my current phone
and don't even know what custom operating systems are available for the model I have.

What annoys me about the user interface: :mad:
*Often lowers the earphone music volume without my permission then gives me this annoying warning that making it higher will damage my hearing - srsly?
*Screen tends to lower it's lighting and back again by itself while I use the phone
*A button at the bottom of the menu that looks like a "home logo" will open somekind of useless google page each time I drag that button up by mistake.
*Terrible and irremovable Gallery app, not to mention it displays images in uncomfortable way, it also features a slideshow which often plays automatically without me asking it to each time I enter a photo album.
*Poorly made irremovable alarm clock app
*Other forced google apps installed on my phone which i don't use and can't just get rid of
*Bad just bad option of organizing apps, well for me atleast, back on my Xperia ARC I used to organize my apps by "commonly used apps" feature, went great, here it's just wacky, it doesn't do it automatically after you set it to organize the following way. So I find myself surfing through all the useless apps to find the app I need at the app menu.


Can anyone give me guidance or recommendation for an alternative Operating System I could replace this horrific google product infecting my phone since I bought it?
I presume this phone would become amazing with a new custom OS, did anyone changed the OS on their HTC 510? if yes what you use and how is it?
Also I know to root this device you first need to unlock the bootloader, is there anything else important I need to know when rooting it?