I JUST FOUND A BEDBUG IN MY BED!!🕷😖😤

I'm so pissed & itchy at the same time!!! How to get rid of these little bastards before they get too bad?!? I only found a few & I sprayed them with breake cleaner (hubby's a mechanic)!! It's the only thing I could find to kill them at the moment!! & that worked but I need something I can take care of the rest of the house & bedroom to make sure they don't take over!! But seriously how am I suppose to get comfortable in my bed knowing I killed them nasty things & more than likely ones I couldn't find still alive!?! I'm just so aggravated right now!! 😖😠😠😠 don't know where the hell they came from... never had them before..

Thanks in advance👍