Variable wont store the textbox value

Question

What im trying to do is to transfer the variables from form2 to form5 and use those variables to replace already existing labels that is on form5

so what i tried is

//this is form 2
public string name;
public string surname;
name = textBox1.Text;
surname = textBox2.Text;
this.Hide();
var form3 = new Form3();
form3.Show();

//this is form 5
private void Form5_Load(object sender, EventArgs e)
        {
            Form1 form1 = new Form1();
            label1.Text = form1.name;
            label2.Text = form1.surname;
        }

Default value of the labels on form 5 is "Placheholder" and for some reason they wont change into the variables what is the problem