Saw your post on a forum about this... People will probably say you'll need to get all different cards and basically
tear this deck apart as 'janky', meaning thrown together without synergy. Your best bet is to stick to having a 60 card deck (don't bother with sideboard to begin with) with the general rule of 24 land 24 creatures and 12 spells with a low mana curve so you can actually play your beasties - then play it a bunch and if you think "oh no this card again" when you're drawing just replace it with one that makes you think "you're gonna die". Lol
Most important is to play with it and have fun. Learning the different ways of playing with the cards is often more fun than losing so don't worry about trying to be too good too soon (otherwise maybe you'll spend too much money too soon lol). Good luck!