I am so drained and life feels exhausting

Hi Everyone I am new to the forum

my names kayleigh, I have 4 children, 3 boys and 1 girl.  Their ages are 10, 4, 3 and 1. My 4 year old has ASD. I was just wondering does anyone ever get down with life just the pressure of it all, the repetitiveness, the meltdowns and behaviour ect? Or is it just me? 

Its so bad and extreme sometimes that I feel like I can’t carry on and do this anymore. It’s so draining and I just don’t feel like I have any sort of life. Am always tired, am mentally drained, I have zero energy!

please does this get any easier/better?