If you lose or forget to bring a cable,adapter or charger,check with your hotel. Most hotels now have a drawer full of cables,adapters and chargers others have left behind,and probably have the one you are missing. You can often claim it after borrowing it.
The best way to measure your investing success is not by whether you're beating the market but by whether you've put in place a financial plan and a behavioral discipline that are likely to get you where you want to go.