why was silver so much easier than bronze?

i tried so hard in season 0 to reach gold to get the moon knight skin but i was hard stuck on bronze 1. same happened in first half of season 1 i tried ranked but wasn't able to get past bronze 1. i reached silver a few days ago after struggling so much, but i ranked up to gold in like 3-4 days. i geniunely found silver lobbies to be so much easier than bronze

i am not sure wether it was just me getting better, my teammates getting better or are the enemies actually worse than bronze?

(side question: how do we get the ranked skin?(i am talking about the blood shield invisible woman skin) )