In my opinion content curation has an impact on your Social Media marketing.
1. Social media needs lots of engagement which is not possible when sharing your own content.
2. Whatever engaging content you write there is always a gap as new ways of doing the same emerges.
3. If you choose a particular area you can share up to date information in that topics.
4. This would help you to get better engagement with your social media audience.
5. You can use a mix and match approach to sharing your content along with curated content.
6. If you visit any social media platform you can find people sharing other people’s content.
7. If you regularly post content regularly both personal /curated people will connect with you as they would consider you as an authority on that topic.
For the Software part you can use
1.Buffer.
2. Sprout social
3. Hootsuite
4. Agora Pulse
5. Sendible and many more.
Best wishes and Good luck.
If you need any help, I would be more than happy to help you.