according to Islam, does every living thing have a soul? even things like insects, trees, bacteria etc.......

There is no such thing as a soul.

Eat, drink, fornicate and be merry

Perhaps you should read this: http://www.muslimphilosophy.com/ip/rep/H010.htm

every living being with a free will has a soul. Some pathetic human beings have themselves confused for pigs. They eat sleep and fornicate with no sense of responsibility for their actions, expecting death to be the end of it all.

In hinduism & budhism, yes

do not for a second believe that in the grand scheme of life you are anything more than a random animal grazing this earth. you have one life to live, live it with no regrets, take no prisoners, and pursue your self interest every step of the way, and leave the fantasies about souls to the insecure day dreamers who think theyre special because theyre human #6,983,485,932

the day some one shows up to your face to tell you about how great heaven is, is the day you can start preparing for it

I think this is true

Oneday a sheikh was speaking about good people and bad people,he said the one who works with something good and beautiful it beautifies him,therefore goldsmiths always have beautiful eyes and those who eat haram,they themselves are like that what they eat....unpure.