LINGO is a Solver - like many other solvers.

First, you must develop the model with pen and paper,

and then, as a second and "final" step you can use LINGO for solving your model.

... eventually, after seeing the solution from LINGO, you may have to adjust step 1, and then run again step 2 ... many times.

btw, for step 1, you can look e.g. here

https://www.frontiersin.org/articles/10.3389/frsus.2022.880409/full

Good luck

Like any Project can have in the following steps:

Pre process phase -- 5-10% efforts time

Primary process - 20-40%

Secondary - 20- 40%

Tertiary - 20- 40%

Polishing and Finishing - 5- 10 %

Can place the principles to follow

And next bring in

Practices to Adhere.

All these are followed as

Operational process of the task

In the course of some periods of time