food is a big help. kill a few stray zombies and collect the guts. That and one turnip plant will give you a lot of options.

like skeletons, the archers are slow to shoot, so wait for it and step aside, then shoot back or charge in. There is a learning curve, but the basic lessons are
- avoid archer fire by timing it
- avoid blob bomb by shooting them from afar
- don't step in water, find a way around or hoe/level it
- avoid abominations for now
- do not go in at night for now

your goals are:
1) get better food (the turnip seeds and zombie guts)
2) cut down 1 new tree type
3) find crypts and get iron inside. Once inside the fighting is very controlled and fairly tame. Outside is deadly.
4) check all the chests in crypts. they are the best in the game, with 4 or 5 very useful items possibly, stuff you can get elsewhere but here you get a stack for nothing, elsewhere is work