AWS EC2 : Should I Choose Lower Server Specs? Is This Too Much For Me?

I have t2.medium (2 CPUs and 4 Gb RAM), but my daily usage is just this much :

if I downgrade my server to t2.small (1 CPU and 2 Gb RAM), theoretically it still enough, right?

by the way, this server is not for public. so only me and my friend who access this server but it runs scripts using CRON.

is there any aspect I need to consider before downgrading my server? thank you.