Boosting your credit score is something that takes time, so it is advisable to get started as soon as possible. Upon examining your credit file, you may notice discrepancies that can be brought to the attention of those responsible. If corrected due to inaccuracies, this will be reflected immediately with an improved credit score.
Other than this, the most effective ongoing strategies for building better credit include the following:
As all of these things take time, it is unlikely that taking action today will result in your qualification for a standard mortgage in the near future.