I also find it difficult to get started with bitcoin wallets because it's hard to find out how much money I have in them.
Well always hold your bitcoins in a secure wallet (e.g. electrum) and for price tracking you can use any other portfolio management app ( it will show you your profit and loss)
These are apps I have been using for managing portfolio
Coin Stats
Coinmarketcap
Blockfolio (Now FTX)