My wallet shows 0 balance! Are my funds lost?

The wallet you use, is a client to connect to the blockchain. It is also used to transmit the transactions from/to your blockchain address. It's not where your funds are stored.

Sometimes these clients have a hard time connecting to the network, thus wrong information may be showed. To check your on-chain balance, you can use a blockchain explorer. All you have to do is copy-paste your address, press search, and check your balances & history of transactions.