If you are targeting to get over 1000 Twitter followers by following others, take the time to evaluate if this option is working out for you or not. This is if you want to keep the ratio of following to followers at a decent level. The moment you are following many people while attracting a few to follow you, the imbalance may be a turn off to other followers who may be interested in following you. It will work better for you if you have many followers and not vice versa.
That is why you need to check you following lists after 5-10 days of following them to determine if they followed back or not. If they have not, just unfollow them instantly, because they are just not balancing your ratio. Even if it will take ages to get your 1000 Twitter followers, ensure the balance is achieved. If you following 1000, let your followers be almost 1000 or more. Consider the timeline before unfollowing such persons since they may not have logged in. Don’t feel sorry for your action because it is for your good.