Automate SQL Script with Multiple Statements

I have a SQL script that works exactly as I want it to when I step through it line by line. At first, this was a viable option, but the script has gotten larger over time and stepping through it now sucks. I've tried to run the script as part of an SSIS package in Visual Studio, but that gave me weird results. I have a feeling this is because I have mixed language in the script, (i.e multiple UPDATE, ALTER, SELECT INTO, statements) ... Is there a way to automate this script so it runs line by line as if I were stepping through it? Thank you!