That depends, if you feel confident exploring caves then most of it should be no worse but stay away from the cave spider spawners until you have protection on at least of couple of armor pieces or a couple of buckets of milk to get rid of the poison effect. Water buckets can be useful for stopping the spiders, though they can climb on the walls and ceilings.
To harvest string from the cobwebs use a sword, you can use a cheap iron or stone one if you want to save your normal one.
If you want the cobwebs themselves you need shears.
I was mining for diamonds and was digging back up then I found a mine shaft I'm pretty newbie should I mark I just mark it?
What enchantments should I have on my armor and tools?
That depends, if you feel confident exploring caves then most of it should be no worse but stay away from the cave spider spawners until you have protection on at least of couple of armor pieces or a couple of buckets of milk to get rid of the poison effect. Water buckets can be useful for stopping the spiders, though they can climb on the walls and ceilings.
To harvest string from the cobwebs use a sword, you can use a cheap iron or stone one if you want to save your normal one.
If you want the cobwebs themselves you need shears.
Just testing.