There are many different ways for you to participate in fantasy football. You should think about how much time you have to invest before you join any league. While many leagues will be fine with once or twice weekly participation, other leagues may want you to do fantasy football on a daily basis.
It is important to not spread yourself too thin when you join a league. Fantasy football is designed to be fun, and should not require as much time as your actual job. You should not let your everyday responsibilities falter just because it is football season.
If you have joined a daily league, they will expect you to participate accordingly. It is not fair to the others in the league if you do not hold up your end of the deal. You should think long and hard before you make the commitment.
This is not to say that they will not understand if an emergency arises. They will not be as understanding if your entire season is one emergency after another. Your fantasy team will also suffer if you do not spend the necessary time on it throughout the season.
Fantasy leagues, no matter which sport, are meant to be fun. They are not meant to take over your life so that your friends, family and work suffers. If you find that one of these is suffering, then you should probably think about quitting the league.
Before joining any fantasy team, you should think about how much time you have to spend on the league and how hardcore do you want to be in the league. There is a fantasy league for everyone, no matter what type of league they want to join. You will have to search to find the perfect fit for you.