im a newb and cons are really hard to get but i lost them all by the same person in 50/50 somedays it just feels like a have horrible luck. i wish i could have 1k coins like the rest of you but i guess i can only try.

When you start getting further in you'll realise that 150 coins isn't a lot, at all.
It might seem it now, but it isn't. Your best bet is to keep going for those high bets in 50/50 at the minute
Or getting some shiny Pokemon and selling them.