Ing-form or infinitive? Put the verbs in brackets in the -ing

Ing-form or infinitive? Put the verbs in brackets in the -ing form or the infinitive?
I used (travel) quite a lot on business but once I discoverew what ( travel) is all about, I changed my job. I just couldnt get used to (sleep) in hotel beds and (eat) restaurant food. I couldnt see anything glamorous in (spend) ten hours in a meeting and then being asked (eat) out in a restaurant and going to bed after midnight. I saw my colleagues (live) like this for years and I dont think they wew enjoying themselves.
Now, during my holidays I try (relax) at home, do some gardening and DIY, and I never regret (change) my lifestyle.