Old messages deleted

[Suki3]

please help me, i was going to check old conversations i had with my friends but messages older than a year have been deleted, even the ones i sent to myself (i used that chat to save things like images) how do i recover them? i tried pressing the "more info" but it just took me to the support page and i cant find a clear answer, i just want my old messages back i always re-read the messages i sent to my old friends because i kinda miss them but now there is nothing at all, im actually going to cry if i cant recover them why does that feature exist and why dont they tell us its there? i would have at least saved the chats but now they're empty