Bugs, insects, and me (HELP!!)?

I just visited our new home, and it looked like the owner died for a few months and left the backyard untouched for nature to take over. It has a big cherry blossom tree, and some other crappy trees. It is FULL of bugs, spiders, GIANT flying insects, dragon flies, and some next level undiscovered species of bugs. I absolutely hate bugs, and I'm willing to do ANYTHING to destroy them. I need some tips and procedures on what to do to get rid of these pests, I'm making this personal. Help will be appreciated to a great extent.