Does everything in the universe eventually die?

All living creatures and forms of energy eventually reach their exhaustion point. Energy is not constant, but it is always changing form and is never lost. The sun will die and it will likely have the same result as any other star that dies, look this up. Also in an infinite universe it's hard to say that at any one point all life will cease to exist. But all life will eventually run its course but will always leave offspring. As for the universe itself, the big bang theory denotes and inevitable big collapse, look that up as well. In the mean time don't read too much into this, just enjoy life as best you can.