I have 2 jobs and need help with how to report taxes

I will be working 2 jobs. One of which is a server at a restaurant. my question is .... given that my hourly rate is $2.13 /hour (yes, this is how much TX servers get paid), and the fact that I will be making tips, does that mean that there essentially won't be "enough" federal income tax that will be taken out of my bi-weekly paycheck? Let's say I get paid all cash tips. I'm just afraid that not enough taxes will be taken out of my paycheck and that I will get hit by a penalty when tax season comes. I know that a way around it may be to adjust your W-4, but even that, it is hard for me to calculate or envision how much tips I will actually get so that my paychecks will take the proper taxes out of it

posted