I am playing this bedwars and it's hard, people is extremely hostile, if you want to survive you need to protect the base. The best block is End Stone and Terracotta, so don't build of wool or glass. There are some rumors about glass is protecting from TNT but it's fake( one time i tried ). Don't break white wool, it's specially designed for perfect work. The best protection is placing terracotta in the anvils and make two big layers of protection, don't forget the people attack from the back and sides, not only front. If you have gold, first spend it on an alarm, a skeleton turret or a golem guardian. The enchantments have more priority than a diamond sword or pickaxe, knockback stick and more, the enchantments last all the match, the weapons 1 life. You can also place mines if you have some gold, don't buy Bridge Builders, they are useless. A secret private chest is a good idea if you have stupid teammates.