Afridi had quit the five-day format after Pakistan lost to Australia at Lord's, last year.
Afridi said he did not become the Pakistan Test captain by choice and he was pressurised to take up the job in the interest of the team.
"I didn't want to accept, but I was under pressure to accept it. I was advised that the unit that I had built [in ODIs] should be continued in Tests too. I didn't want to back out or let the team down. The team was going through a difficult phase and we were trying to re-build the team (hence I accepted)," he said.
"However, I had made it clear that if I didn't enjoy it, I would leave. I should not have quit after that first Test, but I realised that Test cricket is not for me," he told Pakpassion.net.
Afridi said the ODI side need to learn to utilise the batting powerplay well.
"Quite a few teams have faced problems with regards to the batting powerplay. For us, when we take the batting powerplay, we start losing wickets, so then we thought it's probably best to delay the powerplay and take it right at the end to avoid losing wickets earlier.
"I do realise we have this problem. The coach and I have discussed this in detail and hopefully we will see some better results on this in the upcoming series in the West Indies."
Afridi said he was happy to play the role of a floater batsman and was focusing more on his bowling which had paid rich dividends in the World Cup in which he took 21 wickets.
"For the past three or four years, I am a bowling all-rounder. I have focused a lot on my bowling in this period and Alhamdolillah it has worked well."
"I should use my batting according to the situation. There should be no set position for me," he said
