When you want to send Bitcoin, pay a high enough transaction fee and you won't have any issues. Use a wallet that has dynamic fees so it will always calculate the best transaction fee for your transaction to confirm quickly based upon the state of the network.

As for a block size increase, there is a lot of technical nuances that have to go into making one happen. There are currently two proposals out there that have been implemented: Segwit and Bitcoin Unlimited. Nearly all people who can be considered "Bitcoin experts" (aka developers) agree that Segwit is the way to go and that BU is flawed and has issues. Unfortunately activation of segwit depends on enough miners signalling support, and right now that is not happening. Miners right now are tending to not signal any support for any of the proposals.