did water too hot kill my yeast?

ok i dont have all the proper equipment according to a lot of you im sure to make wine

but i had found a recipe on the internet i decided to try because it was cheap to make

involved sugar yeast concentrated fruit juice
water and a milk jug

so i made 2 gallons of it

i had also read that disolving the sugar in boiling water to make sure it got disolved fully was a good idea

one gallon of my wine wouldnt bubble and ferment
so did i maybe put the yeast in bfor it was cool enough?
the batch that i still have going the water wasnt as hot when i mixed it all up

i dont have a hydrometer or any of that stuff(yes i know i should get one if im going to do this )

anyway the surviving gallon(i threw the rest out after i dropped it picking it up and losing half of it )is bubbling away
and looking good

hope i didnt babble too much and gave enough info

Boiling the sugar if not using potasium metabisulphit is required to kill any bacteria and wild yeast that may be in the sugar and water. Yes hot water will kill the yeast, also to much sugar will will do same. Most of these hillbilly recipes call for 3 cup of sugar wich is usually to much. It should be closer to 2 cup.

1 more thing everyone is going to say not to use the milk jug to use glass or better bottle that is NPT1 plastic. Buy a generic 1 gal bottle of apple juice from Kroger or Wal-Mart. Ive discovered that these are NPT1 plastic. But will fall in floor when racking if you dont watch them. Tried using 1 gal. plastic bottle 1 time. Never again. But to not spend a bunch of money they will work. And adding a little sugar the juice can be used to make wine. Juice is less than $4.00.

ty for the tips
and the ones that didn't start and frustrated me where in glass although they had more sugar and the water was hotter


the plastic jug was going great till it spilled all over the floor of my shed(you can imagine the smell of fermented yeast and sugar in there now)

anyway i have a half gallon of wine brewing which should have been 2 gallons but oh well i could have lost it all

looking into some better equipment and going to try again soon

again ty for the reply