I want to improve my English, so I created a new plan for learning this language but. However, my first issues is whith the app Elsa speak, because a I think it´s a good tool but I have to pay for the service, The price is really good but I don´t know if I´ll be constant whith my process,. I´m going to practice whith the free version and passtry it for one month. If I continue to study, then I´ll buy it .

Adding "so" between two sentences shows that the you want to buy the app BECAUSE you want to improve your English.

I think "pass one month" is a bit awkward, "pass" is usually only used when time itself passes.

I want to improve my English,. I created a new plan for learning this language but my first issues is whith the app Elsa speak, because a. I think it´s a good tool but I have to pay for the service,. The price is really good but I don´t know if I´ll be constaistent whith my process,. I´m going to practice whith the free version, and pass one month I'll continue to study, and then I´ll buy it .