Trying to safe pennies over quality will humble you few months or a year later when mining crypto, today I almost but down my house thank God I just went down to a store nearby, should have knew but I am sick with cough and catarrh so my nose is not working right.
Don't buy cheap risers
Don't buy cheap Pcie extender cables ( that's what I did ), in fact don't go cheap on your setup than buying cheap GPU, other parts are very important, that includes the power supply as well.
Aside for picking a quality hardware check also your cables if this one installed right by fully skilled electrical engineers or electrician. Also don't forget to do monthly maintenance by checking your lines so that you can avoid any such incident. Lastly maybe much better if you don't do mining at home since putting it there will give you huge risk about losing everything since imagine how devastating you experience today. Maybe this is good learning experience and bounce back again since for sure this is just a challenge for you.