Marion, I'm french but I want improve my english !

Hello and good morning ! I want to help you by correcting your presentation, don't take it bad =)
'no age for learn' is 'no age for learning'
'a horse riding' is 'horse back riding' ( a horse can't ride you / un cheval peut pas embarquer sur toi )
'For the moment, I prefer improve my english ! But i'll RP when I me feel capable' is 'For the moment, I prefer improving my english ! But I'll RP when I feel capable'. ( Ne jamais dire I me dans une même phrase est une règle dans l'anglais, ou sinon, de dire comme ceci : I,me, blablabla )
'I have 13 years old' is 'I am 13 years old'
'My aim being improve my english level that is verry bad !' is 'My aim is to improve my english level that is very bad' ( 'very' prends un 'r' seulement. )
'And now I want also whrite in english' is ' And now I want to learn how to write in english too!'

That's it. If you want to take them in account and change your presentation, or if you prefer leaving like that, then it's your choice !
( C'est tout. Si tu veux laisser les erreurs ou bien changer les erreurs de ta presentation, c'est ton choix. )

Marion welcome here.
I think Cupcake That said it all. ^^
Have fun here

Hi Marion and welcome on JLT
The most difficult in English is certainly to not make a word for word translation from French ^^' Well I hope this forum will help you in your english ^^ and don't forget that we're all here to learn =P

Thanks for your help ! (: