It's never the wrong time to support the right cause.

There are many charities aimed to support cancer research, help impoverished communities and promote education. 
What is most important when looking to donate, is to be sure your proceeds are going to the right parts of the charity. 
Some charity organizations will put more of their proceeds towards the fundraising costs for marketing and advertising, whereas others,
 will donate a majority of the proceeds to charity expenses which contributes to the services and programs they offer. 

To be sure you are donating to the right 501(c)(3) charities, who are ranked at least 3-4 stars, you can visit Charity Navigator
Making sure your proceeds are directly supporting the main purpose for each charity is important from the start.

If you'd like donate to The Jimmy Fund 10K, you can do so here.