Need help and support

Hi. I am new to this site. Here's my story. My husband and I were trying to conceive for 3 years before we found out we couldn't have kids. Lots of fertility treatments and such and still... No luck. Recently we have been looking into adoption. Are there any people out there who have adopted that can give me insight?. Is it worth the high costs, how long did the process take you, recommend open or closed adoptions? Any help would be appreciated.