Where can I find best Models with dimensions to practice on Creo Parametric?
You must be dedicated and practise every day.
Try to set new goals for yourself,and furfill them.
And if you do all that it will be easy,but don't expect it to hapen over night.You will need a years of dedicated hard work .
Hope i helped
You can pick any object around you to practice creo. Such as your computer monitor, loudspeaker, etc (Of cause, you can measure its dimension.)