NEED HELP!!!!! Please Read

ok i think i just completely messed up my phone with no hope of recovery but im praying one of you guys is a miracle worker so heres what happened like any other person wanting the latest software i wanted to upgrade my lg g2 to lollipop i found a tutorial and it explained that i needed a custom recovery system (Phone was rooted btw) any way he was usisng twrp so i looked on how to install it from here http://.addictivetips.com/android/what-is-twrp-how-to-install-use-it-on-android-devices-guide/ then after reading some i went to this link http://.addictivetips.com/mobile/how-to-install-a-custom-recovery-to-an-android-phone-device/ thinking i was a smart ass and not fully reading the article called "Automated Methods" i knew a little about ROM manager and took it from there installed it on my phone and messed with the settings trying to figure out how to install it only to read the article and realize i needed goo manager which is not on the play-store instead is a twrp app so i downloaded that and went to install loaded the twrp file on my phone that i got from their site and installed it and also picked my device as listed lg g2 international it was called so after this thinking i was done i became stuck in fastboot mode thats all it said on the screen so i looked for a way to solve it and found this http://.reddit.com/r/lgg2/comments/1soiyj/stuck_in_fastboot_mode_need_help/ which is how my phone looked when plugged in my computer so i followed the instructions and this is where i messed up i did everything it said to do but when doing "fastboot flash boot 6-boot.img" command i got an error so i skipped it and did the other commands in order then came back and tried to do it again and i kept getting error so i ignored it my great mistake and typed the final command "fastboot reboot" after which my phone turned off and never restarted and now i cant turn it on and when plugged into my computer nothing happens at all PLEASE HELP no matter how long i hold the power button nothing happens and power and volume do nothing either is this fixable or is my phone done for??? Also as a new user i couldnt post links so deleted the www part im sorry for going against rules but i feel like looking at the links would help alot

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