@Manoj
Sure! I watched a video of a guy flashing twrp and he had two extra steps might be either one of those, but im guessing its probably the later.
- copied the twrp image into the adb platform tools folder
- following the instructions i hadnt realised you can boot into recovery from within fastboot, and the adb reboot recovery command didnt work within fastboot. So previously i had rebooted the phone into the system after flashing twrp, from there i booted into recovery using the adb command.
In my successful attempt i booted straight into recovery from fastboot by selecting the option with the vol down/up buttons (i had not seen the option listed, but could select it)
Also in my successful attempt i executed the flash command in powershell, but again i dont think that was it i was still using cmd for the other commands
After installation was complete twrp asks if you want the app installed, saying yes also messes with the install apparently. I had misclicked (because i got too excited) and after that it kept just booting into recovery. I redid the wipes/install checked the “reboot after installation complete” checkbox and disagreed to the twrp app install and it worked perfectly then 
Ha, such a noob mistake to not realise i wasn’t actually in twrp before 