The blockchain is about 37GB - Depending on your connection speed, it could take some time.
You cannot make payments while your wallet is syncing. I don't recommend receiving payments on the wallet until you are fully synced.
You can download the bootstrap blockchain here: https://downloads.getmonero.org/blockchain.raw
Good instructions on using the raw file here: https://www.monero.how/tutorial-how-to-speed-up-initial-blockchain-sync