You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
Are you looking for a way to get more subscribers on YouTube? If you're concerned that paying for advertisements would put a strain on your budget, don't be. You can start small and monitor the success of your ad campaign. You may run several ad campaigns at the same time and see how they do and then determine which one to continue later after reviewing the results.