ThreadI am flashing for the first time, can anyone tell me what to do?

Step 1: Download Msm using this link: https://drive.google.com/drive/folders/1S0uvvGztdBo8r5zQ8ty7iRQfbDMbPQIF?usp=sharing to go back to oos10 Step 2: When booted to oos 10 just download this oos 11 zip: https://drive.google.com/drive/folders/1OD2Hyp2Jc3WZ3afW9w-8hPCf-NtXKPUU?usp=sharing and local update it two times. Step 3: After that just unlock the bootloader. Step 4: After successful bootloader unlocking just download oos 12.1: https://drive.google.com/file/d/1t0EZiftlLJZvAvRpYSmh_uqqrK7puw-x/view?usp=sharing and local update it. Step 5: After you boot to oos 12 just install this apk: https://drive.google.com/file/d/10-AgfsgIjVKNiAAK2x_PwM6SyMmDlIRd/view?usp=sharing and local update once more. Step 6: Download whichever rom you like which is based on oos12 fw for eg: Pixelage. Step 7: Boot to bootloader and flash the boot image command: fastboot flash boot boot.img (boot.img) is the boot image name. Step 8: Boot to recovery and factory reset. Step 9: Sideload the rom and after successful installation boot to system ENJOY!!