Adobe help needed $

Hello I hope this picture helps. I'm currently experiencing my videos on premiere to look a little pixely. I'm afraid of continuing down the road and adding effects and etc without solving this first. Can anyone please please help me it's for my first project ever. I'll cash app anyone who's willing to talk me through making the adjustments if needed. My number is 2038205290. Please shoot me a text if you're willing to help me out. Thank you everyone!