Hi @franc.pozo2044, welcome to Thunkable! 
Be sure to check out our posts about How to ask Great Questions v2.0 and our Community Guidelines as you get started.
What is it that you are wanting to do within the four functions? The better way to do this might be to add in some conditionals to check for the criteria where you’d want to stop executing the functions and let the conditions dictate whether this happens or not.