You should have learned from that case if you must be patience. Your transaction was getting pending caused by the network traffic was so high. once it will be going down and your transaction will be confirmed by the block. As long as your transaction already broadcasted to the network and it's still fine. It seems like that your first transaction has been done and that means if what you need to do to wait until your transaction will be confirmed. keep calm and you must not feel worry about that. The blockchain will never make your transaction to be disappeared just caused by it was getting pending due to traffic increase in ethereum network. You can leave your transaction and it will be confirmed automatically. There's no need to speed up your transaction. I have been facing this problem so many times and i just wait until it got confirmed.