Segregated witness separates the signatures from the transactions on the Bitcoin blockchain. It will allow for more transactions per second, so that the Bitcoin network can service more users.
Day trading in crypto is incredibly difficult because this market is so fickle... Better to do your research, pick coins with good teams behind them, and hold them long-term (years) while continuing to educate yourself :)
Thank you! Good advice. Your 100% right, just a few days of day trading made me realise its best suited to those with plenty of time on their hands and a steady nerve.