Don't worry too much aboiut anything when you're sailing alone - it's not much different from having crew. When you want to tack, loosen off the mainsheet while you head the boat into the wind. Just before it rounds over - let go of the tiller/wheel and loosen the jibsheet from the windward cleat. Now shove the tiller hard over to complete your turn, sheet in the jib and slowly sheet the main in. When it comes time to dock - well - be careful !