Serious bug

Hello, as of now this but has been seriously stressing me out and my lads. Hello im Zachary and theres been a serious bug that has been effecting my game which is about the spawning system. The storu goes like this. Me and my mates created a new world and we had fun on it untill the mobs started to spawn a little odd. They spawn in groups, we found 3 dogs, zombies, and creepers (separate place). Which was annoying at some point but that's not the end of it, when we got to the nether, it got even worse, there were at least 15 skeletons that spawned there which was RIDICULOUS. i didint even get the chance to even step out of the portal and im already being shot at ny a million arrows, Note: i was playing on NORMAL difficulty on BEDROCK version of Minecraft and not java. But nonetheless when that happened it stressed me out, i got shot and fell into lava and lost all my diamonds, iron armor and gold that i was trying to trade with piglins. My point is to fix your spawning system and not to make it chaotic and spawn 15 skeletons all in one place. PLEASE fix this mojang. Ive had alot of fun in this game and really dont want to quit. But bugs like these are the exact reasons why i might quit. thank you.