Making an appointment

Some time ago I had to set up an international conference call between one of our suppliers with three of my area managers and two technical experts of my company because we needed to buy a specific  software upgrade. It was a really funny experience  and challenged us because all of us were Spanish but the supplier was English and neither he spoke Spanish nor we spoke English, but not only this needed to be into account????. The first time I called our supplier to schedule the meeting I had to recognize I had a really hard time because also when I called him he was on another line and his secretary put me through to his voice mail...uuufff I wasn’t expecting It, but actually my recording/message had to be even better than I had thought because he called me back immediately...no..no really.
But for the meeting during the week I looked over different reports in English about the proposal to talk over in the meeting and I made a draft also in English and these practices (ok)   helped me a lot...and if the meeting had been recorded, I am convinced It would be an exit-views in YouTube. The passion, the respect, the sense of humor and enjoyment you do everything with are the key to personal success in life

Making an appointment

A time while ago I had to set up an international conference call between one of our suppliers with three of my area managers and two technical experts of my company because we needed to buy an specific upgrade software upgrade. It was an experience a really funny experience and challenged us because all of us were Spanish (or "we were all Spanish" to avoid repeating the word "us") but the supplier was English and neither he spoke Spanish nor we spoke English, but not only this needed to be taken into account. The first time I called our supplier to schedule the meeting I have to recognize say I had a really hard time because also when I called him he was on another line and her his secretary put me through to his voice mail...uuufff I wasn’t expecting It that, but actually my recording had to be must have been even better than I had thought because he called me back immediately...no..no really.
But for the meeting during the week I looked over different reports in English about the proposal to talk over in the meeting and I made a draft also in English and these practices this practice helped me a lot...and if the meeting had been recorded, I am convinced It would be an exit-views a big hit in on YouTube. The passion, the respect, the sense of humor and enjoyment with everything you do are the keys to personal success in life.

Great story! My corrections are in red and my suggestions to sound more natural are in blue/grey.

"a time ago" needs an adjective. You would need to say "a long time ago" or "a short time ago". If the length of time is undetermined, you can say "a while ago".
Some examples:
5 years ago = a long time ago
Last year = a while ago or some time ago
Last month = a short time ago or recently

"neither he spoke Spanish nor we spoke English". When you use neither/nor, you don't need to repeat the verb. So you can just say "neither he spoke Spanish nor we spoke English". However, for me the most natural way to hear this would be "neither he spoke Spanish nor did we speak English".

You can use the singular form of "practice" to cover multiple events, for example "I read some grammar books and listened to some podcasts and this practice helped me".