Most of the greatest saints in the World today are little people who just do what they see needs to be done--often without you hearing about it or even knowing they are around! They are always there when you need them, always willing to see the need and respond.--But some people don't find anything to do because they're not even looking!
But if you have real love for the Lord and others, you will be aware of the needs around you and do whatever needs to be done. And if the Lord finds you will obey and get busy serving Him when He tells you to do the humble little tasks, then He knows He can trust you to tell you to do bigger, more important jobs!--But He won't force you! It all depends upon you and your yieldedness and willingness to be made willing. Real willingness and submission require total humility, which is synonymous with total love.--So that you're willing to go anywhere, anytime, and do anything, for anybody, and be nobody, to please God and help others!
Are YOU ready for anything?--Anything God wants you to do?--"I beseech you therefore, brethren, that ye present your bodies a living sacrifice, holy and acceptable unto God, which is your reasonable service." (Rom.12:1)