Having trouble recieving customers info because it takes them directly to paypal

do i send form to customer before or after payment because he paid first then i sent him form to add all information but it sends him straight to paypal.

We would like to apologize for any inconvenience. However, I'm not sure I completely understand your concern.

If the PayPal payment field in your form is filled, not hidden, and no initial submission was made where a payment was already processed, then it will redirect your users to the PayPal page every time they try to submit the form.

We will be glad to help you with your concern. But, can you give us more information about your concern, please?

so should i send the form before they make a payment? also the shipping
isn't included in the form so customer is only asked to pay for item not
shipping. can that be fixed or is it even an option? i created another form
that my suit me better. i just want all customers information and i'll keep
record of payments through PayPal.
...

If you integrate your form with PayPal payment gateway, there's no need to collect the payment to your user. Once the payment form is submitted the user will be redirected to the PayPal page and pay for the product.

Here are some related guides: 

How-to-Integrate-Form-with-Paypal-Standard

How-to-Add-Shipping-Cost-to-Payment-Forms

Setting-Up-Your-First-Order-Form