@@sxadly7460do what the video has shown, but instead go to the word you want to change colour, go to effects and search solid colour. That will let you change the colour of THAY specific text
so this might be a little confusing (so ask me any questions if u have them) but what i do is i mute my audio (the main song) so now my voice over is the only audio you can hear, i go to share and save with audio - now i have the clip without the music - go to audio (left bottom) and there should be some button that says "add audio" so tap that and then import the clip, match it to the voiceover and mute the og audio, now for the music just unmute it and voila haha