Minecraft wiki entry for Best_biomes_for_homes, associated text: In Bedrock Edition, infested stone can be avoided by seeing how long it takes to mine the supposed stone block. If it takes unusually long or takes the same time to mine regardless of what tool is used, it is infested. They can also be mined with a Silk Touch pickaxe if the player has one, because when mined with a Silk Touch pickaxe, they don't release silverfish. Consult the infested block page for more information.
A critical hit on a silverfish with an iron or better sword, or a stone or better axe[Java Edition only] should kill it in one hit and stop any nearby silverfish from attacking.
To obtain more wood, gathering saplings or building your house near its wooded mountain (like grove) is advised.
Watch out for steep cliffs, as falling is possibly the leading cause of death in this biome. Boots enchanted with Feather Falling are strongly advised.
A snow golem-based snow farm is much better than a weather-based one in both simplicity, efficiency and cost.